INGREDIENTS
2 1/4 cups
all purpose flour
1 tsp
baking soda
1 tsp
cornstarch
1/4 tsp
salt
3/4 cup
salted butter, melted
3/4 cup
lightly packed brown sugar
1/2 cup
granulated sugar
1
large egg
1
egg yolk
1 tsp
vanilla extract
1
bag of your favourite m+ms (about 1¼ cups)