Ingredients
The following ingredients have 12 Servings
- 1/2 cup unsalted butter
- 1 cup granulated sugar
- 2 tbsp lemon zest (use 1 tbsp for less strong lemon flavor)
- 3 egg whites (large)
- 1 tsp vanilla extract
- 1 1/2 cups cake flour (not self rising*)
- 2 tsp baking powder
- 1/4 tsp salt
- 3 tbsp lemon juice (fresh)
- 1/2 cup plain Greek yogurt (I recommend using full fat)
- 1 1/3 cups blueberries (fresh or frozen)
- 3/4 cup unsalted butter (soft)
- 3 - 3.5 cups powdered sugar
- 1 tablespoon whipping cream (as needed)
