Ingredients
The following ingredients have 12 Servings
- 4 lemons (freshly zested (about 2-3 tablespoons))
- 1 cup sugar
- 1/2 cup 1 stick butter, melted
- 1 3/4 cup all-purpose flour
- 1 1/2 teaspoons baking powder
- 1/2 cup milk
- 1/2 cup sour cream
- 1 teaspoon vanilla
- 2 large egg whites
- 1 cup blackberries
- 2 tablespoons lemon juice
- 1 cup butter, room temperature
- 4 cups powdered sugar
- 1 teaspoon vanilla
- 1 tablespoon milk or cream
