Chocolate Cupcakes From Scratch

INGREDIENTS

large eggs

2/3 cup

dark unsweetened cocoa powder ((40 grams))

1 cup

salted butter (softened)

3 cups

all-purpose flour ((420 grams))

1 cup

buttermilk ((8 ounces))

2 tsp

vanilla extract

2 tsp

baking soda

2 cups

granulated sugar ((430 grams))

1 cup

strong coffee ((8 ounces))

2 oz

unsweetened chocolate

1/4 cup

salted butter ((56 grams))

1/2 cup

sour cream

1 tsp

vanilla extract

3 cups

powdered sugar ((360 grams))