Preheat oven to 350°. Grease a baking sheet or line it with parchment paper.
In a large bowl, whisk together flour, baking soda, baking powder, cocoa powder and salt.
In a small bowl, stir together egg replacer, vanilla, butter, banana and agave. Stir contents of small bowl into large. Fold in nuts, marshmallows and chocolate chips.
Wet hands and form batter into balls. Place on baking sheet and slightly flatten with the palm of your hand.
Bake for 10 minutes. Let sit until cool enough to handle. Enjoy warm!
Recipe by The Colorful Kitchen at https://thecolorfulkitchen.com/2014/12/22/rocky-road-cookies-vegan-gluten-free/