Desserts
America's Test Kitchen whoopie pie recipe delivers the perfect balance of tender cake layers and gooey filling that's become a Southern classic. These double-layered treats are lighter than traditional whoopie pies, with a moist, spiced cake that crumbles just enough to hold the filling without falling apart.
The secret lies in precise measurements and baking techniques that ensure each component—cake and filling—achieves its ideal texture.
What sets this recipe apart is the foolproof method for achieving cloud-like cake layers that stay tender yet sturdy enough to support the filling. The filling, a velvety blend of butter, brown sugar, and spices, is spread generously between the layers, creating that signature "squish" with every bite.
Unlike many recipes, this version avoids dense, heavy cake by incorporating buttermilk and baking powder for a lighter crumb.
The result is a whoopie pie that's restaurant-quality at home—fluffy, moist cake with a perfectly balanced filling that's sweet but not cloying. The spices (cinnamon, nutmeg, and allspice) add warmth without overpowering, while the brown sugar caramelizes slightly for depth.
These pies freeze beautifully, making them ideal for holiday gifting or meal prep.
Whether you're baking for a crowd or treating yourself to a nostalgic dessert, this recipe delivers consistent, professional results every time. The key is patience—letting the cake cool completely before assembling ensures clean slices and maximum filling ooze.
Serve warm for the ultimate experience, or store in an airtight container for up to 5 days.
Ingredients for america's test kitchen whoopie pie
Twelve ingredients for twelve perfect whoopie pies—cloud-like cake meets velvety filling.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour 🌾 | 3 cups | Sifted for light texture |
| Granulated Sugar 🍚 | 1 ½ cups | White or light brown |
| Packed Brown Sugar 🍚 | 1 cup | Light or dark variety |
| Unsalted Butter 🧈 | 1 cup | Cold, cubed for creaming |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Buttermilk 🥛 | 1 cup | Fresh, not powdered |
| Vanilla Extract 🌿 | 2 tsp | Pure, not imitation |
| Baking Powder 🧂 | 2 tsp | Double-acting, fresh |
| Ground Cinnamon 🌶️ | 1 ½ tsp | Freshly ground preferred |
| Ground Nutmeg 🌶️ | ¼ tsp | Freshly grated |
| Ground Allspice 🌶️ | ¼ tsp | Freshly ground |
| Salt 🧂 | ½ tsp | Fine sea salt |
| Unsalted Butter 🧈 | 1 cup | Cold, cubed for filling |
| Packed Brown Sugar 🍚 | 1 ½ cups | Light or dark variety |
| Ground Cinnamon 🌶️ | 1 ½ tsp | Same as cake spice |
| Vanilla Extract 🌿 | 1 tsp | Same as cake |
| Powdered Sugar 🍚 | ½ cup | For dusting |
The cake’s lightness hinges on sifting the flour and using cold butter—never softened. King Arthur or Bob’s Red Mill flours yield the best texture, but any all-purpose works. For the filling, European-style butter (like Plugrá) adds richness, though standard unsalted butter delivers consistent results. Brown sugar should be packed—use a spoon to press it down firmly in the measuring cup. Freshly ground spices (cinnamon, nutmeg, allspice) elevate flavor, but pre-ground is fine for home baking. Penzeys or McCormick offer reliable quality if you’re stocking your pantry.
No buttermilk? Substitute 1 cup milk + 1 tbsp vinegar (let sit 5 minutes). For a lighter cake, sour cream works too. The filling can be made ahead—store it chilled for up to 3 days or frozen for 3 months. Short on vanilla? Almond extract (½ tsp) adds depth, though it’s stronger. The powdered sugar is optional but worth it for that classic whoopie pie finish. Diamond Crystal baking powder is preferred—Aluminum-free ensures proper rise. If your kitchen runs warm, chill the batter 30 minutes before baking for even layers.
Cake layers keep 2 days at room temperature, wrapped in parchment. For longer storage, freeze assembled pies (unfrosted) for up to 3 months—thaw overnight in the fridge. The filling can be prepared 2 days ahead and stored in the fridge. To reheat, wrap pies in foil and warm at 300°F for 10 minutes. Pro tip: Dust with powdered sugar right after baking while still warm for that signature look. These pies reheat beautifully—microwave 20 seconds for a quick treat, or warm in the oven for maximum gooeyness.
Why You'll Love This Recipe
- No Mixer Needed: I swear by this—just cream butter and sugars by hand until light and fluffy. The butter’s rich flavor comes through without overworking it, and honestly? My arms thank me after mixing.
- Cake-Like Crumb: That perfect balance of tender crumb and subtle chew? It’s all in the brown sugar and butter ratio. Not too cakey, not too cookie-like—just right, with a hint of caramelized sweetness from the brown sugar.
- Packable for Days: Between us, I make a double batch and freeze them. The filling stays fresh for weeks, and when I’m in a rush, I just grab two cakes, slap on some filling, and boom—dessert in seconds. (Yes, even on a Tuesday night.)
- Budget Dessert Win: Five ingredients, zero specialty items. The butter and sugar do all the heavy lifting, and you’ll end up with enough to share—or save for later. My daughter picks out the best slices, but still asks for seconds.
Step-by-step instructions for america's test kitchen whoopie pies
Precision matters here—these layers demand careful technique for perfect texture and flavor.
Cream Butter and Sugars for Light, Airy Cake
In a stand mixer fitted with the paddle attachment, beat the 1 cup unsalted butter and 1.5 cups granulated sugar on medium speed until light and fluffy, about 3-4 minutes. You're looking for a pale, ribbon-like consistency that nearly doubles in volume. This step incorporates air, which is critical for those signature whoopie pie clouds.
Add the 1 cup packed brown sugar and continue beating for another 1 minute until fully combined. The sugars should dissolve completely, leaving no grainy texture. If you see any undissolved sugar, beat for an additional 30 seconds—this ensures even sweetness throughout each layer.
Incorporate Wet Ingredients and Spices
Add the 2 whole large eggs, one at a time, mixing on low speed for 30 seconds after each addition. Scrape down the sides of the bowl to ensure even distribution. Then add the 1 cup buttermilk, 2 teaspoons vanilla extract, and mix until just combined—about 30 seconds. Overmixing at this stage develops gluten, which can make the cake dense.
In a separate bowl, whisk together the 3 cups all-purpose flour, 2 teaspoons baking powder, 1.5 teaspoons ground cinnamon, 0.25 teaspoon ground nutmeg, 0.25 teaspoon ground allspice, and 0.5 teaspoon salt. Sift the dry ingredients directly into the wet mixture and mix on low speed for 30-45 seconds until just combined. The batter should be thick but pourable, with a few flour streaks remaining—this ensures tender layers rather than dense cake.
Prepare the Filling and Bake the Cake Layers
In a separate bowl, cream the 1 cup unsalted butter and 1.5 cups packed brown sugar together until light and fluffy, about 2-3 minutes. Add the 1.5 teaspoons ground cinnamon and 1 teaspoon vanilla extract, mixing until fully incorporated. This filling should be smooth and spreadable—it’s the heart of your whoopie pie.
Preheat your oven to 350°F. Line two baking sheets with parchment paper or silicone baking mats. Using a 2-tablespoon scoop, portion the cake batter into 12 mounds on one baking sheet, spacing them 2 inches apart. Bake for 12-14 minutes, until the edges are golden and a toothpick inserted into the center comes out clean. Let the layers cool on the baking sheet for 5 minutes before transferring to a wire rack.
Assemble and Dust for Presentation
Once the cake layers have cooled completely, spread 1 tablespoon of the filling onto the flat side of one layer. Top with another layer, flat side down, pressing gently to adhere. Repeat with the remaining layers and filling, creating 6 whoopie pies. For the final touch, dust the tops generously with 0.5 cup powdered sugar using a fine-mesh sieve. This step not only adds visual appeal but also enhances the contrast between the cake’s texture and the creamy filling.
Serve immediately for the best experience—these whoopie pies are best enjoyed fresh, with the cake layers still tender and the filling at its peak creaminess. Store any leftovers in an airtight container for up to 3 days, though they rarely last that long!
Pro Tips For Making America'S Test Kitchen Whoopie Pie
- MEASURE BUTTER BY WEIGHT: I learned this the hard way—packing butter into a measuring cup leaves air gaps, and your whoopies will turn out denser than intended. Use a kitchen scale for 120g (8.5 tablespoons) of cold, cubed butter, straight from the fridge. No guessing, no greasy surprises.
- STOP WHEN CENTERS JIGGLE: The recipe’s baking time is a starting point, not a commandment. Pull your whoopies when the edges are set but the centers still wobble slightly—about 12-14 minutes total. Overbaking turns them into hockey pucks, and you’ll regret it when you’re left scraping crumbs off the plate.
- WHISK EGGS UNTIL THICK: Skip the lazy splash-and-go approach. Whisk the eggs until they’re pale, thick, and ribbon-like—about 30 seconds longer than you think. This ensures the batter clings to the dry ingredients instead of pooling at the bottom, giving you that signature tender crumb.
- CHILL BATTER 30 MINUTES: I was skeptical until I tried it: Let the batter rest in the fridge while you preheat the oven. This gives the flour time to hydrate fully, preventing cracks and ensuring even baking. Pro move—your future self will notice the difference.
Regional styles of this dish
Southern Classic Style
In the Deep South, whoopie pies are often made with a spiced cake that's slightly denser, almost like a thick cookie, and a rich, buttery filling packed with brown sugar.
The cake layers here are baked at 375°F for 10-12 minutes, creating a chewier texture that contrasts beautifully with the gooey center. I love adding ½ teaspoon of ginger to the cake batter for a subtle kick that pairs perfectly with the filling.
These Southern versions are traditionally served warm and dusted with powdered sugar right after assembly. 🌶️
Midwest Gooey Version
The Midwest takes whoopie pies to another level by making the filling extra-thick—almost like a frosting—using ½ cup powdered sugar mixed into the butter and brown sugar base. The cake layers are lighter, almost like a pound cake, and baked at 350°F for 14-16 minutes.
A key trick is to let the filling sit at room temperature for 30 minutes before spreading, which makes it easier to handle and ensures it doesn't slide off the cake layers. These pies are often served at county fairs and state fairs across the Midwest. ✨
New England Spiced Twist
New England whoopie pies stand out for their bold spice profile, often including ½ teaspoon of cardamom or ¼ teaspoon of clove in the cake batter alongside the traditional cinnamon and nutmeg.
The filling here is sometimes infused with a splash of orange liqueur (like Cointreau) for a citrusy depth. The cake layers are baked in a slightly smaller size—about 1.5 inches in diameter—and the filling is spread more generously to create a taller, more dramatic pie.
These are perfect for autumn gatherings and holiday baking. 🍂
Texas-Style Chocolate Whoopie
While the classic version is vanilla-based, Texas puts its own spin with chocolate cake layers and a chocolate-hazelnut filling. The cake batter includes ½ cup cocoa powder and is baked at 350°F for 12-14 minutes.
The filling is made by mixing the butter and brown sugar with 1 teaspoon instant espresso powder and 1 tablespoon Nutella or chocolate hazelnut spread. These pies are often topped with chopped toasted hazelnuts and a drizzle of melted chocolate. 🍫
Modern Minimalist Version
For a lighter take, some bakers create a whoopie pie with almond flour or a gluten-free blend, replacing the all-purpose flour with 2 cups almond flour and 1 cup oat flour.
The filling remains the same, but the cake layers are baked at 325°F for 16-18 minutes to prevent over-browning. This version is perfect for those with dietary restrictions but still delivers that signature whoopie pie experience. The texture is slightly denser but still tender and moist. 💫
Holiday Gift-Worthy Adaptation
For gifting, many bakers add a peanut butter or marshmallow fluff layer between the cake and filling. The cake layers are baked slightly larger—about 2 inches in diameter—and the filling is spread more thinly to create a layered effect.
These pies are wrapped in clear cellophane with a ribbon and dusted with powdered sugar for a festive look. They keep well in the fridge for up to 5 days or can be frozen for 3 months. 🎄
Nutrition facts
Frequently asked questions
Why do your whoopie pie cake layers turn out lighter than traditional recipes?
America's Test Kitchen uses buttermilk and baking powder instead of sour cream or baking soda to create a tender, cloud-like texture. The key is also cold butter and sifting the flour—this prevents dense, heavy layers. The recipe avoids overmixing to keep the crumb light and airy while still sturdy enough to hold the filling.
Can I make the cake layers ahead of time?
Bake the cake layers up to 2 days ahead and store them in an airtight container at room temperature. For longer storage, freeze them for up to 3 months—thaw completely before assembling. The filling can also be made 3 days ahead and stored in the fridge. Just let everything come to room temperature before putting them together for the best texture.
How do I prevent the filling from sliding off the cake layers?
Let the filling sit at room temperature for 30 minutes before spreading to soften it slightly. Also, make sure the cake layers are completely cool before assembling—warm layers can melt the butter in the filling. Spread the filling only on the flat side of the cake, and press the layers together gently but firmly. If needed, chill assembled pies for 1 hour before serving to set the filling.
What's the best way to reheat whoopie pies?
For maximum gooeyness, wrap pies in foil and warm at 300°F for 10 minutes. If you're short on time, the microwave works too—just heat for 20 seconds (cover with a damp paper towel to prevent drying). Never reheat from frozen; thaw overnight in the fridge first. The filling is best when slightly softened, not melted.
Can I substitute any ingredients if I'm out of something?
For buttermilk, use 1 cup milk + 1 tbsp vinegar (let sit 5 minutes). No vanilla? ½ tsp almond extract works (it's stronger, so use sparingly). For powdered sugar, omit or use ½ cup granulated sugar sifted finely. The filling can handle ½ cup cream cheese mixed in for extra richness. Always measure brown sugar packed—don't scoop it!