Add the butter to a small pan and melt it over medium-low heat. Add 2 tbsp of almond flour and stir until toasted. Take it off the heat and add the powdered erythritol and cinnamon. Set the crumb aside.
Step 2
To a mug, add the room temperature cream cheese and oil. Whisk until smooth. Add the egg, almond milk, and vanilla extract and whisk until smooth.
Step 3
Add 5 tbsp of almond flour, granulated erythritol, baking powder, and a dash of salt. Stir until a batter forms. Stir in most of the crumb, reserving 1 tsp for the topping.
Step 4
Microwave for 60 seconds, or until cooked all the way through. Add the marshmallows and toast them using a kitchen torch. If you don’t have a torch, you can broil it in the oven.
Step 5
Top with the chocolate pieces and let them melt from the residual heat. Top with the remaining crumb. Serve immediately