Slice avocado in half, remove pit and scrape flesh out with a spoon. In large bowl, mix avocado until creamy and almost no lumps. Add sugar, eggs, vanilla, baking soda, salt and peanut butter until all ingredients are incorporated well.
Then slowly add cocoa powder in small increments to avoid a powdery chocolate mess, mix well.
Stir in chocolate chips and peanut butter chips. Drop by teaspoonfuls onto parchment~lined rimmed baking sheet.
Bake at 350 degrees for 15 minutes, until slightly firm to the touch. Cool on rack for 10 minutes.