INGREDIENTS
5 tbsp
unsalted butter, at room temperature
1/2 cup
brown sugar, firmly packed
1/2 tsp
vanilla extract
1
egg yolk
1/2 cup
rolled oats
3/4 cup
all-purpose flour
3/4 tsp
cornstarch
1/2 tsp
baking powder
1/8 tsp
baking soda
1/8 tsp
salt
1/2 cup
mini chocolate chips