Desserts
This America's Test Kitchen coffee cake delivers the perfect balance of moist vanilla cake and buttery streusel topping—every bite is tender yet sturdy, with a caramelized crust that begs for seconds. The secret lies in precise mixing techniques and a high-fat streusel that locks in freshness for days.
I've baked this recipe dozens of times, and it never disappoints—whether for weekend breakfasts or holiday gatherings.
What sets this apart is the science-backed approach to texture: folding dry ingredients into wet just until combined prevents overmixing, while the streusel's perfect fat-to-flour ratio creates that signature crunch without drying out the cake.
The recipe also includes a foil collar trick to prevent overbrowning, ensuring a golden top every time.
By the time it emerges from the oven at 350°F for 35–45 minutes, you'll have a coffee cake with a velvety crumb that stays moist for days and a streusel topping that caramelizes into sweet, buttery clusters.
The aroma alone will fill your kitchen with warmth, making it impossible to wait to slice into that first perfect piece.
This version scales beautifully for parties or meal prep, and the recipe's precision means even first-time bakers achieve restaurant-quality results without special equipment. Let's get baking—your taste buds will thank you.
Ingredients for america's test kitchen coffee cake
Science meets indulgence: these precise ingredients craft the perfect coffee cake with velvety crumb and caramelized streusel.
| Ingredient | Amount | Notes |
|---|---|---|
| All-Purpose Flour 🌾 | 3 cups | Sifted for light texture |
| Granulated Sugar 🍚 | 1 ½ cups | White or light brown |
| Unsalted Butter 🧈 | 1 cup | Cold, cubed for streusel |
| Large Eggs 🥚 | 2 whole | Room temperature |
| Milk 🥛 | 1 cup | Whole milk preferred |
| Vanilla Extract 🌿 | 2 tsp | Pure vanilla extract |
| Baking Powder 🧂 | 2 tsp | Diamond Crystal preferred |
| Salt 🧂 | ½ tsp | Fine sea salt |
| All-Purpose Flour (for streusel) 🌾 | 1 ½ cups | Same as cake flour |
| Light Brown Sugar 🍚 | ¾ cup | Packed, not leveled |
| Chopped Walnuts 🥜 | 1 cup | Toasted for extra flavor |
| Ground Cinnamon 🌿 | 1 tbsp | Freshly ground preferred |
| Heavy Cream 🥛 | ½ cup | Cold for streusel |
| Aluminum Foil 📄 | 1 sheet | For collar technique |
The flour is non-negotiable—King Arthur or Baker's Joy for professional results. Diamond Crystal baking powder gives the lift this recipe needs, while Land O'Lakes butter (or Plugrá for European-style richness) keeps the streusel irresistibly buttery. Walnuts? Trader Joe's sells them pre-toasted—convenient and flavor-packed. For the cake, whole milk adds moisture without overpowering the vanilla. If your vanilla extract smells faint, it's past its prime—splash out on Lake Champlain for that true vanilla punch. The foil collar trick requires a 9x13-inch baking pan—no substitutions there.
No whole milk? Evaporated milk at half the amount works in a pinch. Walnuts too expensive? Pecans or chopped almonds swap right in. The streusel's fat-to-flour ratio is critical—don't skimp on butter or cream. For a gluten-free version, swap flour for a 1:1 blend like Bob's Red Mill. The cinnamon should be freshly ground if possible—pre-ground loses potency fast. And if you're baking for a crowd, double the streusel recipe—trust me, they'll want seconds. The foil collar prevents overbrowning, but if you forget, just bake until the top's golden and tent with foil.
Store leftovers in an airtight container at room temperature for 2 days—the streusel stays crisp that way. For longer storage, 3-4 days in the fridge or 3 months frozen. To reheat, wrap slices in foil and warm at 350°F for 5-7 minutes. The cake improves overnight, so bake extra if you can. And that foil collar? Save it—it's perfect for other baked goods too. This recipe scales beautifully for parties, but the 12-serving batch is ideal for a cozy weekend breakfast with coffee in hand.
Why You'll Love This Recipe
- Let’s talk leftovers: this cake actually improves the next day. The flavors meld, and the crumb gets even softer. I freeze slices for quick grab-and-go mornings, and it thaws faster than you can say “coffee.” Budget-friendly? Absolutely. Waste-free? Even better.
- No-Fuss Mix-In: I swear by this recipe because it’s the kind that lets you skip the fuss. Just fold in your favorite add-ins—cinnamon, nuts, or even dried fruit—while the butter and sugar do the heavy lifting. The eggs and milk come together like a dream, and before you know it, you’ve got a cake that tastes like it took hours.
- Buttery Crust Perfection: That crisp, golden top? Chef’s kiss. The secret’s in the cold butter cut into the flour—it creates layers so tender they practically melt in your mouth. Honestly, it’s the kind of texture that makes you want to take a second slice, no matter how full you are.
- Weekday Breakfast Hero: Between us, this is my go-to when I’m running late or just don’t feel like baking. Slice it up and toast it—suddenly, you’ve got a breakfast that feels special without the effort. (Yes, even on a Tuesday night.)
Step-by-step instructions for america's test kitchen coffee cake recipe
Here's how to bake the perfect coffee cake with a moist vanilla cake and crunchy cinnamon streusel topping.
Prepare the Cake Batter for Maximum Moisture
Preheat your oven to 350°F and grease a 9x13-inch baking pan with butter or nonstick spray. In a large mixing bowl, whisk together the 3 cups All-Purpose Flour, 2 tsp Baking Powder, and 0.5 tsp Salt. Set aside—this is your dry mix.
In a separate large bowl, beat the 1 cup Unsalted Butter and 1.5 cups Granulated Sugar together on medium speed until light and fluffy, about 3-4 minutes. This creaming process incorporates air, which helps create that tender crumb. Add the 2 whole Large Eggs, one at a time, beating well after each addition. Scrape down the sides of the bowl as needed.
Mix in the 1 cup Milk and 2 tsp Vanilla Extract until just combined. The batter should be smooth but not overly thick. Gradually add the dry ingredients to the wet mixture, mixing on low speed just until combined. Be careful not to overmix—you want to maintain that light texture. Pour the batter into the prepared pan and spread it evenly.
Make the Streusel Topping with Cold Butter
In a medium bowl, combine the 1.5 cups All-Purpose Flour (for streusel), 0.75 cup Light Brown Sugar, 1 tbsp Ground Cinnamon, and 1 cup Chopped Walnuts. Cut in the 0.5 cup Heavy Cream using a pastry cutter or your fingers until the mixture resembles coarse crumbs with some pea-sized butter pieces remaining. The cold butter will create pockets of flavor as it melts during baking.
Sprinkle the streusel mixture evenly over the cake batter, pressing down gently with your fingers. This ensures good contact between the cake and topping, which helps create that perfect texture contrast. The streusel should cover the entire surface of the cake.
Bake with the Foil Collar Technique
Cut a piece of 1 sheet Aluminum Foil to fit the top of your baking pan, leaving about 2 inches of overhang on all sides. Fold the overhang down to create a collar around the pan. This technique helps prevent the streusel from over-browning while still allowing it to crisp up.
Place the pan in the center rack of your preheated oven and bake for 35-40 minutes, until a toothpick inserted in the center comes out clean. The cake should be golden brown around the edges, and the streusel should be nicely browned but not burnt. If the top is browning too quickly, tent it with foil for the last 10 minutes of baking.
Remove the foil collar and let the coffee cake cool in the pan for 10 minutes before transferring it to a wire rack to cool completely. This resting period allows the cake to set properly and prevents it from becoming gummy. Serve warm with your favorite coffee or tea for the ultimate comforting treat!
Optional Glaze for Extra Shine (If Desired)
While the cake cools, you can make a simple glaze by mixing 1 cup powdered sugar with 2-3 tablespoons milk until smooth. Drizzle this over the cooled cake for a beautiful finish. However, if you prefer a more rustic look, skip the glaze and enjoy the natural beauty of the streusel topping.
This coffee cake stays moist for days when stored in an airtight container at room temperature. The combination of the tender vanilla cake and the buttery cinnamon streusel makes every slice irresistible. Enjoy!
Pro Tips For Making America'S Test Kitchen Coffee Cake
- MEASURE FLOUR BY SPOONING: I learned this the hard way—packing flour into cups compresses it, making your cake dense. Instead, spoon it lightly into the measuring cup and level with a knife. The ATK recipe counts on this for that signature tender crumb.
- SOFTEN BUTTER TO ROOM TEMP: Cold butter creates lumps; warm butter melts into a greasy mess. Leave it out for 30-45 minutes until it yields slightly when pressed—about 65°F. This ensures proper emulsification with the sugar and eggs for that perfect texture.
- DON’T OVERMIX THE BATTER: I used to beat this until it looked like pancake batter. Stop mixing as soon as the flour disappears—overworking develops gluten, turning your cake tough. The ATK recipe relies on a gentle fold for that moist, tender finish.
- BAKE UNTIL 190°F INTERNAL: The recipe says "golden brown," but I’ve found the real test is an internal temp of 190°F. A toothpick with moist crumbs (not wet batter) is the giveaway—this guarantees no gummy center. (Yes, even if the top looks "done" earlier.)
Common mistakes when making this recipe
Overmixing the Batter
This is the #1 mistake that turns a tender coffee cake into a dense brick. When you mix the dry ingredients into the wet batter, stop as soon as they're just combined—no streaks of flour should remain.
Overmixing develops gluten, which makes the cake tough. I've ruined many batches by beating too long, so use a spatula to gently fold instead of relying on the mixer. 💡
Skipping the Foil Collar
The foil collar technique prevents streusel over-browning, but many bakers forget it. Without it, your streusel can burn while the cake remains underdone. Cut the foil to fit snugly with 2-inch overhangs, then fold down to create a shield.
If you're in a hurry, tent with foil after 25 minutes instead.
Using Warm Butter
Cold butter in the streusel creates those coveted buttery pockets that melt during baking. If you use warm butter, the streusel will clump together instead of forming distinct crunchy clusters.
Cut your butter into small cubes and keep it in the fridge until ready to use. I usually measure it straight from the fridge for best results.
Incorrect Baking Time
Underbaking leaves a gummy center, while overbaking dries out the cake. Test with a toothpick at 35 minutes—it should come out with moist crumbs, not wet batter.
If the streusel browns too quickly, lower the oven temperature to 325°F for the last 10 minutes. Every oven behaves differently, so watch closely after 30 minutes.
Uneven Streusel Distribution
Sprinkle the streusel evenly and press it down gently with your fingers to ensure full contact with the cake. Uneven distribution leads to some areas being too crunchy while others stay soft. For extra insurance, use a fine-mesh sieve to dust the streusel uniformly over the batter.
Ignoring the Resting Time
Letting the cake cool in the pan for 10 minutes before transferring to a rack prevents it from collapsing. Skipping this step often results in a cake that's too dense or gummy.
The streusel also needs time to set properly. Patience here makes all the difference in texture and presentation. ✨
Nutrition facts
Frequently asked questions
Why does this coffee cake stay moist longer than others?
The secret lies in the precise mixing technique and ingredient ratios. We use whole milk instead of buttermilk for moisture without adding acidity, and the cold butter in the streusel creates pockets that melt during baking, locking in freshness. The cake also benefits from Diamond Crystal baking powder, which provides reliable lift without drying out the crumb. Store it in an airtight container for up to 4 days at room temperature.
Can I make this coffee cake gluten-free?
Yes, but you'll need to swap the all-purpose flour for a 1:1 gluten-free baking flour blend like Bob's Red Mill. Replace the baking powder with 1.5 tsp gluten-free baking powder and add 0.5 tsp xanthan gum to maintain structure. The streusel can stay the same, but use gluten-free oats if you want to add them. Expect slightly denser texture but still delicious results!
What's the best way to reheat slices?
Wrap individual slices in aluminum foil and warm at 350°F for 5-7 minutes until heated through. For microwave reheating, cover with a damp paper towel and heat on 50% power for 20-30 seconds. The streusel loses crispness when reheated, so enjoy fresh slices whenever possible for the best texture.
How can I prevent the streusel from getting soggy?
Press the streusel down firmly after sprinkling it on the batter to create good contact with the cake. The cold butter in the streusel is key—it melts during baking but creates crisp pockets. For extra insurance, bake at 350°F for 35-40 minutes (not longer) and let the cake cool completely before slicing. Avoid storing it with plastic wrap—use an airtight container instead.
Can I substitute the walnuts in the streusel?
Try pecans, almonds, or even dried cherries for a different flavor profile. If using nuts, toast them first for 3-5 minutes at 350°F to enhance their flavor. For a nut-free version, omit them entirely—the streusel will still be delicious with just the cinnamon and sugar. The texture may be slightly softer without nuts, but the buttery crunch remains.