Mix together:

1 c. peanut butter
1 1/2 c. graham cracker crumbs
2 sticks butter, melted
3/4 lb. confectioners' sugar

Pat in 3 x 9 inch pan. Using chocolate chips (semi-sweet), one large chocolate bar, or one old chocolate bunny, melt in double boiler. Spread over peanut butter mixture. Put in refrigerator.

NOTE: Mark off in blocks while cool. Do not wait until it is cold.