INGREDIENTS
1/2 cup
salted butter, softened to room temperature*
1/2 cup
packed light brown sugar (or dark brown sugar)
1/4 cup
granulated sugar
1
large egg
3/4 cup
creamy peanut butter
1 tsp
vanilla extract
1/2 tsp
baking soda
1
and 1/4 cups (160g) all-purpose flour
3/4 cup
M&Ms
3/4 cup
pretzel pieces