Chocolate cake with strawberry buttercream pairs three moist cocoa layers with a frosting made from real freeze-dried strawberries. The berries give the buttercream a concentrated fruit flavor and naturally rosy color without adding the water that fresh strawberry purée would bring.
This is a celebration cake, but each part is manageable when the work is divided. Bloom the cocoa, mix the batter only until smooth, cool the three layers completely, and build the cake with cold, stable rounds. A crumb coat and a short chill make the final frosting much neater even if you are not an experienced cake decorator.
Chocolate Cake Ingredients
For the cake, measure 2 cups all-purpose flour (240 grams), 2 teaspoons baking powder, 1 teaspoon baking soda, 1 teaspoon kosher salt, and 1 1/2 cups granulated sugar (300 grams). The fats are 1/4 cup softened butter (57 grams) and 1/4 cup neutral oil (57 grams). Add 1/2 cup buttermilk (113 grams), 2 room-temperature eggs, and 2 teaspoons vanilla.
The chocolate flavor comes from 3/4 cup plus 1 tablespoon cocoa powder (90 grams) bloomed in 1 cup hot water (236 grams). For the frosting, use 1 1/2 cups softened butter (285 grams), 2 cups powdered sugar (200 grams), 1/2 cup freeze-dried strawberries ground to a fine powder (60 grams), 4 tablespoons milk or heavy cream, 2 teaspoons vanilla, and a pinch of salt. Fresh or freeze-dried strawberries may be added as a garnish.
If you enjoy this recipe, you may also like Banana Pudding Cheesecake.
How to Make the Cake
- Prepare three pans. Heat the oven to 350°F. Grease three 6-inch round cake pans, line the bottoms with parchment, and dust the sides lightly with cocoa or flour.
- Bloom the cocoa. Whisk the 90 grams cocoa powder into 1 cup hot water until no dry pockets remain. Set it aside until warm rather than steaming.
- Combine the dry ingredients. Whisk the flour, baking powder, baking soda, and salt in a separate bowl.
- Mix the fat and sugar. Beat the softened butter, sugar, and neutral oil until evenly blended and slightly lighter. Mix in the eggs one at a time, then add vanilla and buttermilk.
- Finish the batter. Add the cooled cocoa mixture, then mix in the dry ingredients on low speed only until smooth. Scrape the bottom and sides once so no pale streaks remain.
- Bake the layers. Divide the batter evenly among the three pans. Bake for 25 to 30 minutes, until the centers spring back lightly and a tester carries only a few moist crumbs.
- Cool completely. Let the cakes rest in their pans for 20 minutes. Turn them onto racks, remove the parchment, and cool fully before frosting.
- Make the buttercream. Beat the butter for 5 to 6 minutes until pale and creamy. On low speed, gradually add powdered sugar, strawberry powder, and salt. Add the cream and vanilla, then beat for another 3 to 4 minutes until fluffy. Adjust with a teaspoon of cream or sugar only if needed.
- Assemble. Level cooled layers if necessary. Fill and stack them, apply a thin crumb coat, and chill for 30 minutes. Cover with the remaining buttercream and garnish shortly before serving.
For storage details after serving, the USDA leftovers and food safety guidance.
Bloom Cocoa for a Deeper Flavor
Dry cocoa contains particles that need liquid to disperse fully. Whisking it with hot water releases aroma, darkens the color, and prevents dusty lumps in the finished batter. Add the water gradually at first, making a smooth paste, then whisk in the remainder.
Let the mixture cool before it meets the butter and eggs. It does not need to be cold, but it should no longer produce steam. A very hot cocoa mixture can melt the butter abruptly and tighten the egg proteins. If it thickens while standing, a quick whisk restores a pourable consistency.
If you enjoy this recipe, you may also like Triple Chocolate Chip Cookies.
Divide the Batter Evenly
Three thin 6-inch layers bake more evenly than one very deep cake, but they show size differences after stacking. The most reliable method is to weigh the filled mixing bowl, subtract the empty bowl weight, and divide the batter total by three. If you do not have a scale, alternate spoonfuls among the pans instead of filling one completely at a time.
Spread the batter to the edges and tap each pan once or twice on the counter to release large air pockets. Do not overdo it, or the air developed during mixing will be lost. Bake the pans on the same center rack with a little space around each one; rotate only near the end if your oven has a strong hot spot.
Make Strawberry Powder without Lumps
Freeze-dried strawberries should feel crisp and light, never leathery. Grind them in a small processor until powdery, then sift out seeds and any firm pieces. Measure 1/2 cup or 60 grams after grinding so the frosting receives the intended concentration.
Moisture is the enemy of freeze-dried fruit. Open the package just before use and keep the powder away from steam. Fresh berries cannot replace it one for one because their juice can split or loosen buttercream. Reserve fresh strawberries for a garnish added close to serving time.
Build a Smooth, Stable Buttercream
Start with butter that bends under light pressure but is not shiny or greasy. Beating it alone for 5 to 6 minutes creates a pale base and removes dense lumps. Add the powdered sugar and strawberry powder gradually on low speed to keep them in the bowl, then increase the speed only after the dry ingredients are dampened.
The stated 4 tablespoons of cream produce a soft, spreadable frosting in many kitchens, but temperature and sugar brands vary. If the frosting droops, chill it for 10 minutes before adding more sugar. If it tears the cake as you spread, beat in cream one teaspoon at a time. Finish at low speed for a minute to smooth large air bubbles.
Level, Fill, and Crumb-Coat the Layers
Cold cake is easier to handle. Once the rounds are completely cool, wrap and chill them briefly if the room is warm. Trim domed tops with a long serrated knife, keeping the blade parallel to the counter. Put the first layer cut side up, spread an even buttercream layer, and repeat.
A crumb coat is a deliberately thin layer that traps loose chocolate crumbs. It may look patchy; its job is not decoration. Chill the coated cake for about 30 minutes, until the frosting feels firm, then add the final coat with a clean offset spatula. This keeps dark crumbs out of the pale pink finish.
Troubleshooting
- Cake layers sink: The batter may have been overmixed, the oven opened early, or the centers removed before set. Check only near 25 minutes.
- Layers stick: Grease the pans, line every bottom with parchment, and allow the 20-minute cooling period before turning out.
- Buttercream looks curdled: The butter may be too cold or the liquid added too quickly. Keep beating at medium speed and warm the outside of the bowl gently with your hands.
- Frosting slides: The cake or room is too warm. Chill the layers and crumb-coated cake before applying the final coat.
- Strawberry flavor is weak: Use fresh, crisp freeze-dried fruit and grind it immediately before making the frosting.
Serving and Storage
For clean slices, chill the assembled cake until the layers are stable, then let it stand at room temperature for 20 to 30 minutes. Dip a long knife in hot water, dry it, and wipe it between cuts. The cake tastes best when the buttercream is cool but no longer firm.
Cover and refrigerate the cake for up to three days. A cake carrier protects the buttercream from refrigerator odors and prevents the surface from drying. Bring individual slices toward room temperature before serving. If using fresh strawberry garnish, add it on the day of serving and remove any fruit that begins releasing juice.
Unfrosted cake layers can be wrapped tightly and frozen for up to two months. Thaw them while still wrapped so condensation forms outside the covering rather than on the cake. The buttercream can be refrigerated for several days; return it to a soft room temperature and beat briefly before using.
Conclusion
Bloom cocoa in hot water, divide the batter evenly among three prepared 6-inch pans, and cool the layers completely. Make the frosting with finely ground freeze-dried strawberries, then stack, crumb-coat, chill, and apply the final buttercream for a clean chocolate-and-berry celebration cake.
Frequently Asked Questions
- → Can fresh strawberries replace freeze-dried strawberries in the buttercream?
Not in the same amount. Fresh berries add substantial water and can loosen or split the frosting. Use freeze-dried strawberry powder for the buttercream and reserve fresh berries for garnish.
- → Can I bake the chocolate cake layers ahead?
Yes. Cool the layers completely, wrap them tightly, and refrigerate for up to two days or freeze for up to two months. Thaw frozen layers while still wrapped.
- → Why does the cake need a crumb coat?
The thin first layer traps loose chocolate crumbs. After it chills firm, the final pale strawberry buttercream can be spread without dark crumbs showing through.
- → How should chocolate cake with strawberry buttercream be stored?
Keep it covered in the refrigerator for up to three days. Let the cake or individual slices stand at room temperature briefly before serving so the buttercream softens.