INGREDIENTS
8 oz
Strawberries
1
Egg, large
1
Egg yolk, large
2 cups
All-purpose flour
1/2 tsp
Baking powder
1/4 tsp
Baking soda
1/2 cup
Brown sugar, lightly packed light
1/2 cup
Cocoa powder, dutch-process
3 cups
Confectioners' sugar
1/2 cup
Granulated sugar
3/4 tsp
Salt
3/4 tbsp
Vanilla
25 tbsp
Butter, unsalted
2 tbsp
Sour cream