1 (18 ¼ ounce) package of yellow cake mix.
1 cup of peanut butter.
½ cup of brown sugar.
1 cup of water.
¼ cup of vegetable oil.
¾ cup of semi-sweet chocolate chips, divided.
¾ cup of peanut butter chips, divided.
½ cup of chopped peanuts.
In a mixing bowl, mix together the cake mix, peanut butter and brown sugar and beat on low speed. (set aside ½ cup of crumb mixture).
In the same bowl, add water, eggs and oil and beat on low for 2 minutes until well combined.
Fold in ¼ cup each of the chocolate chips and peanut butter chips and mix.
In a greased 13×9 baking dish, pour the batter.
In a bowl, mix together the peanuts, ½ cup of crumb mixture and the rest of the chips and sprinkle all over the batter.
In a preheated oven to 350°, bake for 40 to 45 minutes.