Lemon Angel Food Cupcakes

INGREDIENTS

Cupcakes:

1/2 cup

cake flour (about 2 ounces)

3/4 cup

powdered sugar

3/4 cup

egg whites (about 5 large eggs)

1/8 tsp

salt

3/4 tsp

cream of tartar

1/2 cup

granulated sugar

1/2 tsp

vanilla extract

2 tsp

grated lemon rind

Lemon Frosting:

1/4 cup

butter, softened

2 cups

powdered sugar

1 tbsp

1% low-fat milk

to 2 tablespoons freshly squeezed lemon juice

Edible flowers such as pansies or rosebuds (optional)