Ingredients
Method
Preparation of Strawberry Puree
- Puree strawberries in a blender or processor; you need a little over 1 cup.
- Pour into a small saucepan and simmer over medium-low, stirring, until reduced to 1/2 cup, about 25 to 35 minutes.
- Transfer to a heat-safe bowl and cool completely. Refrigerate overnight for easiest timing, then bring to room temp.
Baking the Cake
- Preheat oven to 350°F (177°C). Grease two 9-inch pans, line with parchment, then grease parchment.
- Whisk cake flour, baking powder, baking soda, and salt in a medium bowl.
- In a large bowl, beat butter and sugar on medium-high until light and creamy, about 3 minutes.
- Beat in egg whites on high until combined, about 2 minutes.
- Mix in sour cream and vanilla on medium-high until smooth.
- Add dry ingredients, then with mixer on low, slowly pour in milk; mix just until combined.
- Whisk in the reduced puree and a drop of color if you like. The strawberry cake batter will be slightly thick.
- Divide batter evenly between pans and smooth tops.
- Bake 24 to 25 minutes, until a toothpick comes out clean.
- Cool in pans on a rack for 1 hour, then release, remove parchment, and cool completely.
Making the Frosting
- Grind freeze-dried strawberries to a fine powder. Sift out larger bits.
- Beat cream cheese and butter on medium-high until silky, about 2 minutes.
- Add confectioners’ sugar, strawberry powder, milk, and vanilla. Beat low 30 seconds, then high 3 minutes.
- Taste and add a pinch of salt if too sweet. Chill frosting 1 hour to firm.
Assembling the Cake
- Level cake tops with a serrated knife. Place first layer on a stand and spread 3/4 to 1 cup frosting.
- Top with second layer, upside down. Apply a thin crumb coat over top and sides, then chill for 20 minutes.
- Finish with remaining frosting. Refrigerate for 20 minutes so the strawberry cake slices neatly.
Nutrition
Notes
For best texture, let slices sit at room temperature 45 to 60 minutes before serving. Freeze unfrosted layers up to 2 months or the fully frosted cake up to 1 month; wrap well.
