INGREDIENTS
1 cup
unsalted butter (room temperature)
1 1/3 cups
granulated sugar
1
large egg (room temperature)
2 tsp
vanilla extract
2 1/2 cups
all-purpose flour
1/2 tsp
baking powder
1/2 tsp
baking soda
3/4 tsp
salt
2 cups
Lucky Charm Marshmallows (divided)
sugar sprinkles