INGREDIENTS
6 tbsp
unsalted butter, softened
1/2 cup
granulated sugar
1
large egg
1 tbsp
vanilla extract
3/4 cup
all-purpose flour
1/8 tsp
fine salt
1/4 tsp
baking soda
6 tbsp
whole milk
1/2 tsp
apple cider vinegar*
8 tbsp
unsalted butter, at room temperature
2 cups
powdered sugar
2 tsp
vanilla extract
1 tbsp
heavy cream