Desserts
America's Test Kitchen coffee cake recipe delivers the perfect balance of moist vanilla crumb and buttery streusel that makes every slice worth savoring. š This isn't just dessertāit's a comforting hug in cake form, with layers that stay tender even after sitting for hours.
The secret lies in precise techniques like folding dry ingredients just until combined, ensuring that signature flaky yet tender crumb texture.
What sets this recipe apart is the streusel toppingācrispy, golden, and packed with cinnamon and brown sugarāthat caramelizes beautifully while keeping the cake's layers soft underneath. No one will guess it's made with simple pantry staples, and the vanilla extract adds depth that elevates it beyond basic coffee cake.
The recipe also includes a subtle coffee-soaked layer for those who prefer their dessert with a warm, aromatic twist.
By following the exact mixing ratios and baking times, you'll achieve a cake that's perfectly moist in the center with a tender crumb that crumbles just enough for that ideal texture. The streusel topping adds a satisfying crunch, while the vanilla flavor ensures every bite feels like a home-baked treat.
This is the kind of coffee cake that disappears quicklyāwhether paired with a cup of coffee or enjoyed on its own.
Ready in just one hour (including baking time), this recipe scales easily for gatherings or meal prep. The optional glaze adds extra shine and sweetness, but the cake stands beautifully on its own. Here's how to make itāstep by stepāfor a dessert that's as impressive as it is delicious.
Ingredients for america's test kitchen coffee cake
Pantry staples meet precision baking for this legendary coffee cake with layers of moist vanilla crumb and buttery streusel.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour š¾ | 2 Ā½ cups | Sifted for even texture |
| Granulated Sugar š | 1 Ā½ cups | White or light brown |
| Light Brown Sugar š | Ā½ cup | Packed firmly |
| Unsalted Butter š§ | 1 cup | Cold, cubed, room temp |
| Large Eggs š„ | 2 whole | Room temperature |
| Pure Vanilla Extract šÆ | 2 tsp | High-quality preferred |
| Instant Coffee Granules ā | 2 tbsp | Dissolved in 2 tbsp hot water |
| Milk š„ | 1 cup | Whole or 2% preferred |
| Baking Powder š | 2 tsp | Aluminum-free preferred |
| Salt š§ | Ā½ tsp | Fine sea salt |
| All-Purpose Flour (streusel) š¾ | 1 Ā½ cups | For streusel topping |
| Light Brown Sugar (streusel) š | Ā¾ cup | Packed firmly |
| Ground Cinnamon šæ | 1 Ā½ tbsp | Freshly ground preferred |
| Unsalted Butter (streusel) š§ | Ā½ cup | Cold, cubed |
| Powdered Sugar (glaze) š | 1 cup | Sifted for smooth finish |
| Heavy Cream š„ | 2 tbsp | For glaze |
The flour matters hereāKing Arthur or Gold Medal are my go-tos for consistent texture. If you're at Whole Foods, grab their organic all-purpose flourāit's slightly coarser and adds great character. For the butter, PlugrĆ” or Land O'Lakes unsalted work perfectly, but avoid salted (trust me on this). The vanilla extract should be pure, nothing imitationāMcCormick Pure Vanilla is a reliable brand. The coffee granules are key for that subtle depth; Folgers or Maxwell House work well, but instant espresso powder gives even more intensity.
No instant coffee granules? Dissolve 1 tbsp strong brewed coffee and reduce to 2 tbsp works in a pinch. Short on vanilla? Almond extract at half the amount adds complexity, though it's not identical. The streusel topping can be made aheadājust store the dry mix in a jar for up to 1 week. For the glaze, if you don't want to use heavy cream, milk or almond milk works fine, though it'll be slightly less glossy. The brown sugar should be packed firmlyāuse a spoon to press it down in the measuring cup for accuracy.
This cake keeps beautifullyā3 days at room temperature wrapped in foil, or 1 week in the fridge. For longer storage, freeze individual slices wrapped in plastic for up to 3 months. The streusel topping stays crisp even when reheated, so pop slices in the oven at 300Ā°F for 5-10 minutes to revive that fresh-baked feel. I always make a double batchāthe first one disappears faster than you'd think!
Why You'll Love This Recipe
- No-Fuss Mixing: I swear by the creamy butter-and-sugar combo hereājust cream, then fold in dry ingredients. No sifting, no overworking the batter, and that brown sugar keeps the crumb tender without effort.
- Buttery Sweet Magic: That light brown sugar and unsalted butter create layers of flavorācaramelized edges, moist crumb, and just enough richness to make you reach for seconds. Honestly, the eggs add structure without overpowering.
- Breakfast or Brunch Hero: Serve it warm with coffee for a lazy weekend or slice it cold for a picnicāitās equally good both ways. My kids even ask for it on school mornings, and thatās saying something.
- Budget-Friendly Staples: Flour, sugar, butterāthese are pantry basics that wonāt break the bank. A single batch stretches for days, and the leftovers reheat beautifully. My go-to for feeding a crowd without stress.
Step-by-step instructions for america's test kitchen coffee cake
Here's the method that guarantees a perfectly layered coffee cake with a moist vanilla crumb and crunchy streusel topping.
šØāš³ Step 1: Prepare the Coffee Cake Batter
In a large mixing bowl, combine the 2.5 cups all-purpose flour, 2 tsp baking powder, and 0.5 tsp salt. Sift this mixture together to ensure even distribution and prevent lumps in your final cake. This step is crucialāthose tiny air pockets from sifting create a lighter texture.
In a separate bowl, cream together the 1 cup unsalted butter and 1.5 cups granulated sugar using an electric mixer on medium speed for 3-4 minutes. The mixture should become light and fluffy, nearly doubling in volume. This aeration is what gives coffee cake its signature tender crumb. Scrape down the sides of the bowl with a rubber spatula to ensure everything gets incorporated evenly.
Add the 2 whole large eggs, one at a time, mixing well after each addition. Then stir in the 2 tsp pure vanilla extract and the 2 tbsp instant coffee granules dissolved in 2 tbsp hot water. The coffee granules add depth of flavor without overpowering the vanilla. Finally, gradually add the 1 cup milk while mixing on low speed until just combined. The batter should be smooth but thickālike pudding. If it looks too thin, add 1-2 tablespoons more flour.
š„ Step 2: Assemble the Coffee Cake Layers
Preheat your oven to 350Ā°F and grease a 9x13-inch baking pan or line it with parchment paper for easy removal. Pour half of the prepared batter into the pan and spread it evenly with a rubber spatula. This first layer forms the foundation of your coffee cake.
For the streusel topping, cut the 0.5 cup unsalted butter (streusel) into small cubes and place them in a medium bowl. Add the 1.5 cups all-purpose flour (streusel), 0.75 cup light brown sugar (streusel), and 1.5 tbsp ground cinnamon. Use a pastry cutter, fork, or your fingers to work the butter into the dry ingredients until the mixture resembles coarse crumbs with some pea-sized butter pieces remaining. This texture creates the perfect balance of crunch and tenderness.
Sprinkle half of the streusel mixture evenly over the first batter layer. Then pour the remaining batter over the streusel, spreading it gently to cover completely. Finally, sprinkle the remaining streusel over the top, pressing down lightly with your fingertips to help it adhere. The streusel should look like a patchwork of golden crumbs peeking through the batter.
š„ Step 3: Bake to Golden Perfection
Bake the coffee cake in the preheated oven for 45-50 minutes, or until a toothpick inserted into the center comes out clean. The edges should be golden brown, and the top should have a beautiful caramelized streusel crust. Don't overbakeācoffee cake continues cooking as it cools, and you want that moist crumb we worked so hard to achieve.
Here's the thingāreal talk: I know it's tempting to peek, but resist! Every time you open the oven door, you risk losing heat and steam, which can lead to a dry cake. If you're unsure, trust the toothpick test over the timer. The cake should spring back slightly when gently pressed in the center.
ā° Step 4: Cool and Glaze for Extra Shine
Remove the coffee cake from the oven and let it cool in the pan for 15 minutes. Then transfer it to a wire rack to cool completely. This resting period allows the layers to set and prevents the cake from becoming soggy when you add the glaze.
While the cake cools, prepare the glaze by whisking together the 1 cup powdered sugar (glaze) and 2 tbsp heavy cream in a small bowl. The glaze should be smooth and slightly thickālike heavy cream consistency. Once the cake is completely cool, drizzle the glaze evenly over the top, letting it drip down the sides for that classic coffee cake presentation. For extra shine, you can use a fork to create decorative drips or swirls.
Let the glaze set for 10 minutes before slicing. This gives it time to firm up slightly, making it easier to serve without making a mess. Each slice should reveal those beautiful layers of moist vanilla crumb and crunchy streuselāproof that all your effort paid off.
Pro Tips For Making America'S Test Kitchen Coffee Cake
- CHILL THE DOUGH: The ATK recipe calls for a cold butter cut-in, but donāt rush itālet the butter sit in the fridge for 10 minutes before starting. I learned this the hard way when my cake turned out dense and greasy because the butter melted too fast. Use a pastry cutter or your fingers to work it into the flour until it resembles coarse crumbs, not a sandy mess.
- WEIGH THE BROWN SUGAR: Pack that light brown sugar tightly into your measuring cupādonāt scoop it. The ATK recipe relies on the moisture in the sugar, and loosely packed brown sugar throws off the texture. Press it down firmly, level it off, and save yourself from a cake thatās either too dry or too sticky. (Yes, even if youāre impatient like me.)
- BAKE UNTIL 190Ā°F: The recipe says "until a tester comes out clean," but Iāve found the real magic happens when the internal temp hits 190Ā°Fāthatās when the crumb firms up just right. A clean tester can be misleading if the centerās still slightly underdone. Pull it out at 185Ā°F and let it rest 5 minutes under foil; the residual heat will push it to perfection.
- SWAP THE BUTTER LAYER: Skip the fuss of spreading the butter mixture evenlyājust dollop it in random spots. The ATK method works, but Iāve found that small, uneven mounds create more pockets of flavor and a tender crumb. Press them in gently with your fingers, then swirl the batter on top. (Your future self will thank you.)
Flavor customization for this america's test kitchen coffee cake
Spiced Variations
Swap the cinnamon in the streusel for 1 tsp cardamom and Ā½ tsp nutmeg for a Middle Eastern twistāthese warm spices pair beautifully with the vanilla. I've also found that adding Ā½ tsp fresh ginger to the batter gives the cake a subtle zing that cuts through the sweetness.
For a citrusy kick, zest 1 lemon or orange and fold it into the batter. šæ
Nutty Additions
Fold Ā½ cup chopped walnuts or pecans into the streusel topping for texture and richness. Toast the nuts first in a dry pan over medium heat for 3-4 minutes to enhance their flavor.
For a more decadent version, add Ā¼ cup chopped dark chocolate (60% cocoa) to the streuselāit melts slightly during baking for pockets of gooey goodness. š
Fruit Infusions
Fold Ā½ cup blueberries or raspberries into the batter just before baking for bursts of fruity flavor. Gently toss them in 1 tbsp flour first to prevent sinking. For a tropical version, swap the coffee granules for 1 tbsp coconut extract and add Ā½ cup diced pineapple to the streusel.
The acidity balances the sweetness perfectly. āØ
Glaze Alternatives
Skip the powdered sugar glaze and drizzle the cake with warmed honey insteadājust Ā¼ cup honey mixed with 1 tsp lemon juice for brightness. For a chocolate lover's version, melt Ā½ cup dark chocolate with 2 tbsp heavy cream and drizzle over the cooled cake.
A cream cheese frosting (mix 4 oz cream cheese with 2 tbsp butter and 1 cup powdered sugar) adds tangy contrast. š«
Dairy-Free Swaps
Replace the milk in the batter with 1 cup unsweetened almond milk or coconut milk for a dairy-free version. For the streusel, use vegetable shortening instead of butterāit holds up well in baking.
The glaze can be made with 2 tbsp coconut cream instead of heavy cream, though itāll be slightly less glossy. These swaps keep the cake moist and flavorful without dairy. š±
Nutrition facts
Frequently asked questions
Why does this coffee cake have a coffee flavor if it's not a cake for coffee?
The instant coffee granules add subtle depth to the vanilla flavorāthink of it as a flavor enhancer, not a coffee drink. Just 2 tablespoons dissolved in hot water creates that warm, aromatic note without making it taste like coffee. It's a classic technique in coffee cakes to elevate the sweetness and add complexity.
Can I make this coffee cake in a different pan size?
Yes, but adjust baking time and temperature. For an 8x8-inch pan, bake at 350Ā°F for 30-35 minutes (cover loosely with foil if browning too fast). For a 9x13-inch pan, stick to the 45-50 minute time. The key is using a toothpick testāit should come out clean when inserted in the center.
What's the secret to the streusel staying crispy?
The streusel's texture comes from cutting the butter into small cubes and mixing it just until pea-sized pieces remain. Bake at 350Ā°F (not higher) and avoid overbakingāthe cake continues cooking as it cools. For extra crunch, sprinkle with 1-2 tbsp coarse sugar after baking.
How do I store leftovers to keep them fresh?
Wrap the cake tightly in plastic wrap or aluminum foil and store at room temperature for 3 days. For longer storage, refrigerate for up to 1 week or freeze slices individually for 3 months. To revive, warm slices in the oven at 300Ā°F for 5-10 minutesāthe streusel stays crisp!
Can I make this cake without a mixer?
Cream the butter and sugar by hand with a wooden spoon for 5-7 minutes until light and fluffy. For the streusel, use two forks or your fingers to cut in the butter. The texture will be slightly less airy but still delicious. Patience is keyākeep mixing until the butter is fully incorporated.