In a medium bowl, whisk together the dry ingredients.
In a large bowl, beat the butter and sugars. Add in aquafaba and vanilla and beat until fluffy.
Add the dry ingredients and mix until combined. Fold in the chocolate chips and mini marshmallows.
Cover with plastic wrap and place in the fridge for 15 minutes.
While the dough chills, preheat the oven to 375 degrees farenheit and line a baking sheet with parchment paper.
Take 1 tbsp of the cookie dough and roll into a ball. Roll another tsp of dough and place it on top of the bigger ball. See blog post above for a photo. Do not flatten the cookies.
These cookies spread, so bake 6-8 cookies at a time, depending on the size of your oven/baking sheet. Give them lots of room!
Bake for 11 minutes. Let them cool on the baking sheet before transfering them to a cooling rack.