Preheat oven to 350°F (176°C). Line a baking sheet with a silicone baking mat or parchment paper.

Combine the flour, cocoa powder, baking soda, and salt in a medium-sized bowl and set aside.

Cream butter and sugars together until light and fluffy, about 3-4 minutes.

Add the egg and vanilla extract and mix until well combined.

Add the dry ingredients and mix until well combined. Don’t over mix.

Stir in the Snickers, chocolate chips, peanut butter chips, and caramel bits.

Roll into balls of cookie dough about 2 tablespoons in size.

Place the cookie dough balls on the lined cookie sheet. Bake for 8-10 minutes. The center might look a little undercooked, but the edges should be done.

Remove cookies from oven and allow to cool for 5-7 minutes, then remove to a cooling rack to cool completely.

Serve. Store leftover cookies in an air-tight container. Best if eaten within 3-4 days.