Almost Snickers

12 ounces Low fat ice cream — softened
1 cup Low fat Cool Whip
1/4 cup Crunchy peanut butter
1 package Sugar free Chocolate pudding
3 ounces Grape Nut cereal

Mix together ice cream, Cool Whip, peanut butter and pudding.
Fold in Grape Nuts.
Spread in 8×8 inch pan and freeze.