3/4 c. powdered sugar
1/3 c. peanut butter
1 lg. box vanilla instant pudding mix
1 (8 oz.) container Cool Whip

Combine powdered sugar and peanut butter until crumbly. Place 1/2 the mixture in bottom of 9 inch baked pie shell. Save other half and set aside. Mix pudding as instructed. Pour onto peanut butter mixture. Spread Cool Whip over top of pudding mixture and sprinkle with remaining peanut butter mixture. Refrigerate. Serve.