INGREDIENTS
1
Egg
1/4 tsp
Root beer concentrate
1 1/8 cups
All purpose flour
1 1/4 tsp
Baking soda
3/4 cup
Brown sugar
1/4 cup
Cocoa powder, dark
4 cups
Powdered sugar
1/2 tsp
Salt
4 tsp
Vanilla
1/3 cup
Root beer
1/2 cup
Butter
1 1/2 sticks
Butter
9/16 cup
Heavy cream
2 tbsp
Milk
2 tbsp
Sour cream