INGREDIENTS
1/2 cup
butter (, softened)
1 cup
granulated sugar
1
egg
1
egg white
2 tbsp
sour cream
1 tsp
vanilla extract
2 1/2 cups
all-purpose flour
1/2 tsp
baking powder
1/4 tsp
baking soda
1/2 tsp
salt
1/4 cup
butter (, softened)
2 cups
powdered sugar
2 tbsp
cream or half and half
1 tsp
vanilla
Several drops food coloring ((optional))