Peanut Butter Chocolate Chip Bars

1/2 c. butter
1/2 c. sugar
1/2 c. brown sugar
1 c. chocolate chips
1 egg
1/3 c. peanut butter (I like crunchy pb for this part, but either works)
1/2 t. baking soda
1/2 t. salt
1 c. flour
1 c. oatmeal

Icing:
1/2 c. powdered sugar
2 T creamy peanut butter
2 T milk

Preheat the oven to 350 degrees. Cream the butter and sugars together. Add the egg and peanut butter and mix well. Stir in the dry ingredients. Press into a 9x13 pan. Sprinkle chocolate chips over the top. Bake for 25 minutes or until golden. While that is cooking mix up the icing. Remove bars from the oven and drizzle with the icing. Cool completely.