Making Keto Blueberry Mug Cheesecake is straightforward. Follow these simple steps to create your delicious dessert:

1. Prepare the Mug: Start by greasing a microwave-safe mug or bowl with a little butter to prevent sticking.
2. Mix Cream Cheese: In a small mixing bowl, combine the softened cream cheese and melted butter. Stir until smooth.
3. Add Sweetener: Mix in the granulated erythritol, ensuring there are no lumps.
4. Incorporate Egg: Crack in the egg and whisk until fully incorporated and smooth.
5. Flavor It Up: Add the vanilla extract and baking powder, stirring well to combine.
6. Add Almond Flour: Gradually mix in the almond flour until the batter is uniform.
7. Fold in Blueberries: Gently fold in the blueberries, making sure they are evenly distributed throughout the batter.
8. Microwave: Pour the mixture into the prepared mug. Microwave on high for 1-2 minutes, checking for doneness. The cheesecake should be set and slightly firm to the touch.
9. Cool: Let it cool for about 5 minutes before enjoying. This allows the flavors to meld and the texture to firm up slightly.
10. Optional Topping: If desired, top with a few extra blueberries or a dollop of whipped cream for an added treat.

Follow these steps, and you will create a Keto Blueberry Mug Cheesecake that is both satisfying and delicious!