Mrs. Boat Oatmeal Peanut Butter Blocks

This recipe is from a group.  The group wax waxing poetic about the school lunches that used to be at Cherry Hill Elementary and this recipe came up.  They also mentioned a favorite meal was chili and a sugar doughnut.  You sure wouldn't find that nowa days. School lunch sure has gone down hill.  

1/2 c butter
1/2 c white sugar
1/2 c brown sugar
CREAM TOGETHER AND BLEND IN THE FOLLOWING:
1/2 t baking soda
1/4 t salt
1/2 t vanilla
1 egg
1/3 c peanut butter
STIR IN:
1 c flour
1 c quick oats
SPREAD IN A 9 X 13 INCH PAN; BAKE AT 350 DEGREES FOR 20 MINUTES.
Sprinkle with 1 6-ounce pkg chocolate chips and let stand 5 minutes.
SPREAD CHIPS EVENLY AND FROST WITH:
1/2 c powdered sugar
1/4 c peanut butter
2-3 T cream