Gluten Free Chocolate Mug Cake (Baked in 1 Minute!)

0 To your favorite mug, add all dry ingredients to a microwave-safe mug and mix well.
1 Add milk, oil, and vanilla. Stir until smooth batter forms.
2 Stir in chocolate chips, mini marshmallows or peanut butter if using.
3 Microwave for 60 seconds, checking after 60 seconds.Add 10 seconds more if needed.
4 Let cool slightly, then enjoy warm. Feel free to to top with chocolate syrup, marshmallows, and/or crushed candy canes.