INGREDIENTS
2 cups
all-purpose flour
1/2 tsp
baking soda
1 1/2 sticks
salted butter, melted and cooled
1 cup
brown sugar
1/2 cup
sugar
1
egg + 1 egg yolk, at room temperature
2 tsp
vanilla extract
1 cup
chocolate chunks
3/4 cup
marshmallow fluff
1/2 cup
crisped rice cereal