Vanilla Cupcakes Recipe

1 cup butter, softened

1 1/2 cups white sugar
3 large eggs + 1 lg egg white
1 TBS vanilla extract
256 grams Due North GF All-Purpose Flour
3 TBS corn starch
1 3/4 baking powder
1/8 tsp salt
3/4 cup milk, room temp

CHOCOLATE CREAM CHEESE FROSTING

8 oz cream cheese, cold
1/2 cup butter, room temp
1/2 cup  Ghirardelli unsweetened cocoa
2 cups powdered sugar
1 tsp vanilla extract