INGREDIENTS
1 cup
butter (softened)
1 cup
brown sugar
1/2 cup
granulated sugar
1
large egg
1
large egg yolk
1 tbsp
vanilla extract
2 cups
flour
1 cup
oats (quick cooking or old fashioned)
1 tsp
baking powder
1 tsp
baking soda
1 tsp
salt
1 1/3 cups
chocolate chips
1 cup
Reese's Pieces
1/3 cup
Reese's Pieces