Homemade Kit Kat Bars

Ingredients

▢72 club crackers
▢1 cup salted butter (2 sticks)
▢1 cup light brown sugar, firmly packed
▢1/3 cup sugar
▢2 cups graham cracker crumbs
▢1/2 cup milk
▢2/3 cup creamy peanut butter
▢1 cup semi-sweet chocolate chips