Line a small baking sheet with parchment paper. Drop 18-19 teaspoons of peanut butter and freeze until the dough is ready, for 30 minutes to 1 hour until firm.
Preheat the oven to 350F (180C). Line two baking sheets with parchment paper.
In a bowl whisk flour with cocoa powder, salt and baking soda. Set aside until ready to use.
In another bowl mix the butter with peanut butter and both sugars until creamy. Add egg and vanilla and mix until well incorporated.
Use a wooden spoon or spatula to gradually incorporate flour mixture and chocolate chips.
Refrigerate the dough for 30 minutes, for easier handling.
Remove the peanut teaspoons from the freezer.Take large spoons of cookie dough, flatten on your palm, add peanut butter and wrap the dough around and roll into balls. Place on the prepared baking sheet.
Sprinkle with flaky sea salt.
Bake for 9-11 minutes, remove and let to cool on the baking sheet for at least 5 minutes. While still hot decorate the cookies with fall colored M&M’s candies, if serving for holidays.
Transfer the cookies to a cooling rack to cool slightly. Enjoy!