1 pkg. yellow cake mix (with pudding in mix)
4 eggs
3/4 c. water
1/3 c. vegetable oil
1/3 c. creamy peanut butter
1 1/2 c. Hershey semi sweet chocolate chips
1/4 c. chopped, unsalted peanuts

Heat oven to 350 degrees. Grease and lightly flour 13"x9" pan. Prepare cake batter according to package directions using water, eggs and oil. Blend in peanut butter. Spread 1/2 of batter in pan. Sprinkle 3/4 cup chocolate chips over batter. Gently spread remaining batter over top. Sprinkle remaining 3/4 cup chips and peanuts over batter. Bake 45 minutes or until toothpick inserted comes out clean. Cool in pan.