Layer One:
¾ cup butter, softened
¾ cup white sugar
¾ cup brown sugar
3 eggs
¾ cup peanut butter
¾ tsp soda
½ tsp salt
½ Tbs vanilla
Mix well with electric mixer.
Add 1 3/4 - 2 cups flour and 1 3/4 cups quick or rolled oatmeal. Mix in well. Spread evenly on greased 12 X 16 inch cookie sheet. Bake at 325 degrees for about 20 minutes.
Layer Two:
Spread chocolate chips over layer one while still warm. Let cool.
Layer Three: (optional)
3-4 cups powdered sugar
1 ½ cups peanut butter
8 Tbs evaporated milk
Mix together and spread over top of chocolate layer. Cut into bars.
Or you can change Layer Two to: spread creamy peanut butter over top and for Layer Three: Melt until smooth, 1 Tbs butter and 1/3 cup cocoa. Add to above mixture and beat until smooth: 2 ½ cups powdered sugar ½ Tbs vanilla, 1/8+ milk. Spread over peanut butter layer.
OR you can add chocolate chips to the oatmeal batter and when cooled, frost with chocolate frosting (preferably Duncan Hines classic chocolate.)
Cut into bars.