Reese's Peanut Butter Bars

Yield: see note*

INGREDIENTS:
2 cups finely crushed graham crackers (1 pkg. makes about 1 1/4 cups)
1 cup margarine, melted
1 cup smooth peanut butter
2 1/3 cup powdered sugar
1 (12 oz) bag chocolate chips

DIRECTIONS:
Mix first four ingredients together well, and press into 9x13 pan.  Melt chocolate chips.  Pour over and cool thoroughly in refrigerator.

*For those counting calories, I figured out that an entire pan full is 5,980 calories, so:
1/20 = 299
1/25 = 239
1/30 =199
1/40 = 149.5