No Bake Reese's Peanut Butter Bars

1 1/2 C graham cracker crumbs
1 lb (3 1/2 C) powdered sugar
1 1/2 C creamy peanut butter
1 C (2 sticks) real butter, melted
1 12oz bag chocolate chips (milk, semi-sweet, or dark, you pick!)
2 tsp shortening
In a large mixing bowl, combine graham cracker crumbs, powdered sugar and peanut butter and butter and beat until combined. Press into a parchment (or waxed paper or foil) lined 9x13 pan.
Place chocolate chips and a scoop of peanut butter in a microwave safe bowl and heat in 30 second intervals, stirring after each one, until melted and smooth. Pour chocolate over peanut butter mixture and spread out evenly. Place pan in the fridge just until chocolate is set and then cut into bars. Tip: If the bars chill until the chocolate is too hard to easily cut, use a sharp knife and score the cuts first, then gently cut through. Can be stored in the fridge or at room temp. They will stay firmer if stored in the fridge.