Snickerdoodle Cupcakes with Brown Sugar Buttercream

INGREDIENTS

1 1/2 cups

all purpose flour

1 1/2 cups

cake flour

1 tbsp

baking powder

1/2 tsp

salt

1 tbsp

cinnamon

2 sticks

unsalted butter, softened

1 3/4 cups

white sugar

large eggs

1 tbsp

vanilla extract

1 1/4 cups

whole milk, room temperature

2 sticks

unsalted butter, softened

1/2 cup

light brown sugar

1 tsp

cinnamon

4 cups

powdered sugar

1/2 tsp

vanilla extract

1/4 cup

half and half or whole milk