½ cup margarine (I use Blue Bonnet)
½ cup butter (one stick)
1 cup light brown sugar
1 cup chopped pecans or walnuts
18 graham crackers, halved
Line a jelly roll pan (15x10x1) with graham crackers. Combine margarine, butter, brown sugar, and nuts in medium saucepan. Bring it to a full boil over medium heat; boil for 3 minutes, stirring constantly. Spoon boiled butter and sugar mixture over graham crackers. Bake at 350 F degrees for 13-15 minutes. Cool. Cut caramel graham cracker cookies into squares (or whatever shape you prefer).