Chocolate Mug Cake - Vegan and Gluten-free! This easy gluten-free and vegan peanut butter chocolate mug cake recipe is one of our go to 5-minute desserts when we want dessert fast without the fuss. This mug cake recipe uses quinoa flour, cocoa, almond milk, and coconut oil meaning you can enjoy it without the guilt. Give it a try! Vegan Chocolate Mug Cake is also great as an impromptu dinner party dessert for guests with all sorts of dietary restrictions...from idea to table in 5 minutes!