0 Heat treat a box of brownie mix in the microwave or oven. (See more detailed instructions in the Notes).
1 Allow the brownie mix to cool before making the dip.
2 Combine cream cheese and whipped topping in a large mixing bowl. Stir by hand or using an electric mixer.
3 Add the brownie mix to the wet ingredients. Stir by hand or with a mixer to thoroughly combine.
4 Transfer the dip to a serving bowl and top with mini M&M's or chopped walnuts.