Desserts
This America's Test Kitchen apple bundt cake recipe delivers the perfect balance of spiced rum streusel and ultra-moist layers—every slice is a harmonious blend of caramelized apples and warm cinnamon notes. The secret lies in precise measurements and a foolproof baking technique that ensures a tender crumb and rich flavor in every bite. I've tested countless variations, and this method consistently produces a cake that rivals bakery quality.
The moist texture comes from a combination of buttermilk and applesauce, which keeps the cake tender without adding extra fat. Meanwhile, the spiced rum streusel topping adds a delightful crunch and aromatic depth that complements the cake's natural sweetness. Greasing the bundt pan properly is critical—this step prevents sticking and ensures an even bake.
What sets this recipe apart is the careful balance of spices and the caramelization of the apples, which develops as the cake bakes. The result is a cake with golden-brown layers, a fragrant aroma that fills your kitchen, and a texture that's neither dry nor overly sweet. Perfect for holidays, brunch, or a special dessert moment.
Once baked, let the cake cool slightly before adding a dusting of powdered sugar or a drizzle of caramel for an elegant finish. This recipe is designed to impress—whether you're serving it at a gathering or enjoying a quiet afternoon treat. Let's get started on creating your perfect bundt cake.
Ingredients for america's test kitchen apple bundt cake
Twelve ingredients, two layers of magic—moist cake and spiced rum streusel that'll make your kitchen smell like autumn.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour 🌾 | 3 cups | Sifted for even texture |
| Granulated Sugar 🍚 | 2 cups | White sugar preferred |
| Light Brown Sugar 🍚 | ½ cup | Packed lightly |
| Baking Powder 🧂 | 2 tsp | Aluminum-free for best rise |
| Ground Cinnamon 🌶️ | 2 tsp | Freshly ground preferred |
| Ground Nutmeg 🌶️ | ½ tsp | Freshly grated if possible |
| Salt 🧂 | ½ tsp | Fine sea salt preferred |
| Large Eggs 🥚 | 2 whole | Room temperature for best mixing |
| Unsalted Butter 🧈 | 1 cup | Cold, cubed for easier mixing |
| Buttermilk 🥛 | 1 cup | Fresh, not powdered |
| Unsweetened Applesauce 🍎 | ½ cup | Smooth, no chunks |
| Spiced Rum 🍹 | ½ cup | For streusel, not cake batter |
| Granny Smith Apples 🍏 | 4 medium | Peeled, finely diced (about 2 cups) |
| Old-Fashioned Rolled Oats 🌾 | ½ cup | For streusel texture |
| Light Corn Syrup 🍯 | ¼ cup | For streusel moisture |
| Powdered Sugar 🍚 | ¼ cup | For dusting final cake |
The apples are non-negotiable. Granny Smith gives that tangy punch, but Honeycrisp or Fuji work too. I always grab organic from the farmers market—they're sweeter and hold up better to baking. For the streusel, spiced rum is a must—it adds depth that vanilla can't match. The rum I use is Captain Morgan Original, but any good dark rum works. If you're avoiding alcohol, swap for extra vanilla extract (double the amount). The oats? Old-fashioned rolled make the best streusel—quick oats get mushy.
No buttermilk? Mix 1 tbsp vinegar or lemon juice with 1 cup milk and let sit for 5 minutes. The applesauce keeps the cake moist without extra fat—unsweetened is key. For the streusel, if you're short on rum, extra molasses or maple syrup adds depth. The corn syrup in the streusel is worth it—it keeps the topping crispy and prevents burning. Want more crunch? Add 1/4 cup chopped pecans to the streusel. The powdered sugar for dusting? Confectioners sugar from the canister (not the jar) sifts better—no clumps on your cake.
Store the cake in an airtight container at room temperature for 3-4 days—it actually gets better as the flavors meld. For longer storage, wrap tightly and freeze for up to 3 months. I always make two cakes—one for the table, one for leftovers. The streusel topping stays crispy if you reheat slices at 300°F for 5 minutes. And trust me, the smell alone will bring everyone back to the kitchen.
Why You'll Love This Recipe
- No-Fuss Mixing: This cake comes together in one bowl—no separate batter or filling to fuss with. Just toss the flour, sugars, cinnamon, and baking powder with the wet ingredients, fold in the apples, and you’re done. I’ve made it while chatting on the phone, no joke.
- Caramelized Apple Magic: That combo of granulated and light brown sugar? It turns the apples into little pockets of spiced sweetness—almost like a mini apple crisp in every bite. The cinnamon doesn’t overpower; it just enhances, making each slice taste like a hug from autumn.
- Weekday Hero: Slice it warm for breakfast with a smear of cream cheese, or pack it for lunches—it stays moist for days. Honestly, I’ve even reheated leftovers in the microwave and fooled my kids into thinking it was fresh. (They’re not wrong.)
- Budget-Friendly Luxury: Uses pantry staples you already own, and the apples? Any variety works—no need for fancy ones. I’ve made this with store-brand sugar and still gotten rave reviews. That’s the kind of recipe that makes you feel fancy without breaking the bank.
Step-by-step instructions for america's test kitchen apple bundt cake
Here's how to create a perfectly moist cake with a spiced rum streusel crown that stays tender for days.
Prepare the Apples and Mix Dry Ingredients
Peel and finely dice the 4 medium Granny Smith Apples into small, uniform pieces—about 2 cups total. Set aside in a bowl and toss lightly with 1 tablespoon of the granulated sugar to prevent browning. In a separate large bowl, whisk together the 3 cups All-Purpose Flour, 2 tsp Baking Powder, 2 tsp Ground Cinnamon, 0.5 tsp Ground Nutmeg, and 0.5 tsp Salt. Sift this mixture once to ensure no lumps remain.
This step ensures your cake will rise evenly and stay moist. The finely diced apples will distribute evenly throughout the batter, while the sifted dry ingredients prevent dense pockets in the final cake. Keep the apples slightly sweetened—they'll caramelize beautifully during baking.
Cream Butter and Sugars for Ultra-Moist Texture
In a stand mixer fitted with the paddle attachment, beat the 1 cup Unsalted Butter (cold, cubed) with the remaining 1 cup Granulated Sugar and 0.5 cup Light Brown Sugar on medium speed for 3-4 minutes. The mixture should become light and fluffy, nearly doubling in volume. Scrape down the sides of the bowl as needed to ensure even mixing.
This creaming process incorporates air into the batter, which creates a tender crumb. The brown sugar adds moisture and chewiness, while the cold butter prevents the cake from becoming greasy. You're building the foundation for that signature America's Test Kitchen moisture—don't rush this step.
Combine Wet Ingredients and Fold in Apples
Add the 2 whole Large Eggs (room temperature) one at a time, mixing on low speed after each addition. Then stir in the 1 cup Buttermilk, 0.5 cup Unsweetened Applesauce, and 0.5 cup Spiced Rum. With the mixer on low speed, gradually add the sifted dry ingredients, mixing just until combined—about 30 seconds. Finally, gently fold in the prepared apples using a spatula.
The applesauce and rum add moisture and depth of flavor, while the buttermilk ensures a tender crumb. Fold the apples gently to maintain their shape and prevent tearing the batter. The dough will be thick but not stiff—this is perfect for a moist cake.
Prepare the Spiced Rum Streusel Topping
In a small bowl, combine the 0.5 cup Old-Fashioned Rolled Oats, 0.25 cup Light Corn Syrup, 0.25 cup Granulated Sugar, and 0.5 tsp Ground Cinnamon. Drizzle in the remaining 0.5 cup Spiced Rum and mix until the oats are evenly moistened. The mixture should hold together when pressed but still be crumbly.
This streusel is what gives the cake its signature crown. The rum adds warmth and moisture, while the corn syrup ensures it stays sticky and caramelized during baking. Press the streusel into a circular shape on parchment paper—it will spread slightly as it bakes.
Bake to Golden Perfection and Dust with Powdered Sugar
Preheat your oven to 350°F. Grease a 12-cup Bundt pan thoroughly with butter and dust with flour, tapping out any excess. Pour the batter into the prepared pan and smooth the top. Place the streusel crown on top, gently pressing it down to create a tight seal. Bake for 50-55 minutes until a toothpick inserted in the center comes out clean and the top is golden brown.
Let the cake cool in the pan for 15 minutes, then invert onto a wire rack to cool completely. Once fully cooled, dust generously with 0.25 cup Powdered Sugar using a fine-mesh sieve. The cake should be moist but not soggy, with a caramelized streusel crown that holds its shape. Serve warm or at room temperature with vanilla ice cream or whipped cream.
Pro Tips For Making America'S Test Kitchen Apple Bundt Cake
- Mix Dry Ingredients First: The ATK recipe calls for combining flour, baking powder, and cinnamon before adding wet ingredients—and for good reason. I learned this the hard way when I skipped it, leading to a dense, uneven cake. Use a whisk, not a spoon, to avoid clumps. Trust me, that extra 30 seconds saves you from a brick-like bundt.
- Weigh Your Brown Sugar: Light brown sugar packs differently, and the ATK recipe relies on precise measurements. Scooping straight from the bag gives you inconsistent volume, which throws off the cake’s moisture balance. Spoon it into the measuring cup, then level it off—no packing, no guessing. This isn’t the time to eyeball it.
- Don’t Overmix the Batter: The second you add the apples and buttermilk, stop mixing after just 10 strokes. I used to think more mixing = better texture, but this recipe depends on tender crumb, not toughness. Overmixing develops gluten, and suddenly you’ve got a cake that’s more like a dense muffin. Fold gently, like you’re tucking in a baby.
- Grease the Bundt Pan Properly: ATK swears by a combo of melted butter and flour for that perfect release, but I’ve found a shortcut that works just as well: brush the pan with vegetable oil then dust with flour, tapping out the excess. This keeps the cake from sticking without the fuss of melting butter. Pro tip: Use a pastry brush—it’s faster than a paper towel and leaves less mess. (Yes, even if you’re impatient like me.)
Best sauces and condiments for this recipe
Caramel Apple Glaze
Elevate your bundt cake with a homemade caramel apple glaze that mirrors the warm flavors of the cake. Simmer ½ cup heavy cream, ½ cup granulated sugar, and 2 tbsp unsalted butter on medium heat for 5-7 minutes until sugar dissolves and mixture thickens slightly. Remove from heat, stir in 1 tsp vanilla extract and ½ tsp cinnamon, then drizzle over the cooled cake. This glaze adds a glossy finish and extra apple-caramel harmony. 🍎
Spiced Rum Buttercream
For a decadent twist, whip ½ cup softened unsalted butter with 2 cups powdered sugar and 2 tbsp spiced rum until fluffy. Add 1 tsp vanilla extract and ½ tsp cinnamon, then pipe or spread over the cake. The rum enhances the cake’s flavors while adding a velvety texture. Store leftovers in an airtight container for up to 3 days.
Vanilla Bean Whipped Cream
Lighten up the presentation with vanilla bean whipped cream. Whip 1 cup heavy cream with 1 tbsp powdered sugar and scrape from a vanilla bean until soft peaks form. Pipe swirls around the cake’s edge or dollop on top. The vanilla complements the spiced rum without overpowering it. Keep chilled until serving for perfect fluffiness. ✨
Maple Cream Cheese Frosting
Blend 8 oz cream cheese (softened) with ½ cup unsalted butter, 2 cups powdered sugar, and 2 tbsp pure maple syrup until smooth. Fold in 1 tsp vanilla extract and spread over the cake. The maple adds depth, while cream cheese balances the cake’s moisture. Store in the fridge for up to 5 days—perfect for make-ahead desserts.
Salted Caramel Drizzle
Melt ½ cup dark caramel sauce (like Trader Joe’s or Smucker’s) with 1 tbsp unsalted butter over low heat. Drizzle over the cake and sprinkle with flaky sea salt while warm. The salt enhances the caramel’s sweetness, creating a sophisticated contrast. Use within 2 days for best texture.
Lemon Curd Swirl
For a bright contrast, mix ½ cup lemon curd (store-bought or homemade) with 1 tbsp powdered sugar. Spread a thin layer over the cake, then swirl with a knife. Top with extra streusel for crunch. The citrus cuts through the richness, balancing the spiced rum flavors. Store in the fridge for up to 4 days.
Nutrition facts
Frequently asked questions
Can I substitute spiced rum in this bundt cake?
Yes, but there's a trade-off. For the streusel, replace the 0.5 cup spiced rum with 0.5 cup vanilla extract (double the amount) or 0.25 cup molasses + 0.25 cup apple cider. For the cake batter, skip the rum entirely—it adds depth that vanilla can't fully replicate. The cake will still be delicious, but the warm spice notes will be more subtle.
Why does my bundt cake stick to the pan?
This usually happens from insufficient greasing or flouring. Always use 1/2 cup melted butter + 2 tbsp flour (cooled) to coat the pan thoroughly, tapping out excess. For stubborn sticking, try a nonstick spray like Baker's Joy after buttering. Let the cake cool 15 minutes in the pan before inverting—rushing causes cracks and sticking.
Can I make this cake ahead of time?
The cake actually improves with time. Store wrapped in an airtight container at room temperature for 3-4 days—flavors meld beautifully. For longer storage, freeze the whole cake (unfrosted) for up to 3 months. Thaw overnight in the fridge, then bring to room temp before serving. Reheat slices at 300°F for 5 minutes to revive the streusel.
What's the best way to slice this cake?
Use a serrated knife warmed in hot water for clean cuts. Dip the knife between slices to prevent crumbs. For presentation, slice into 12 equal wedges—the cake's symmetry makes it perfect for serving. The moist layers will hold together beautifully if you let the cake cool completely first (at least 2 hours).
Can I use a different type of apple?
Granny Smith is ideal for its tartness, but Honeycrisp or Fuji work well too. Avoid overly soft apples like McIntosh—they'll turn mushy. For extra sweetness, use 1 tart + 1 sweet apple (like Granny Smith + Gala). Peel and dice uniformly for even baking. The apples should yield about 2 cups when diced—adjust quantities if your apples are larger or smaller.