Preheat oven to 350 degrees. Line 2 baking sheets with parchment paper.
Place the butter and both sugars in a large bowl. Beat until well combined. Add the eggs, beat until fully incorporated.
Place the flour, cocoa, baking soda and salt in a medium bowl, stir to combine. Add to the sugar mixture, beating until just incorporated.
Add both chips and chopped peanuts to the bowl. stirring until just combine.
Scoop heaping Tablespoons of dough onto the parchment paper, bake at 350 degrees for about 12 minutes or until set. Remove to a wire rack to cool.