Ingredients:
- 3/4 cup all-purpose flour
- 1/4 cup unsweetened cocoa powder
- 1 teaspoon baking powder
- 1/4 teaspoon salt
- 4 large eggs, separated
- 3/4 cup granulated sugar, divided
- 1/4 cup water
- 1 teaspoon vanilla extract
- 1/4 teaspoon cream of tartar
- 1/2 cup heavy cream
- 1/4 cup powdered sugar
- 1 teaspoon vanilla extract
- 1 cup semi-sweet chocolate chips
- 1/4 cup heavy cream
