This easy no bake cookie dough cookie bars recipe makes a delicious bar cookie from homemade chocolate chip cookie dough. It’s easy to make with only 5 minutes’ work and requires no baking!
1 stick (1/2 cup) butter, softened
3/4 cup brown sugar
1 tsp. vanilla
1 (14 oz.) can sweetened condensed milk
2 cups flour
12 oz. chocolate chips, divided
1/2 cup peanut butter, optional