Preheat the oven to 400 degrees F (205 degrees C). Spray a muffin tin with Nonstick Cooking Spray (to taste) or line it with muffin liners.
In a small bowl, mix the Almond Flour (1 cup), Ground Cinnamon (2 teaspoon), Granulated Erythritol (3 tablespoon), and Baking Powder (3/4 tablespoon).
In a medium bowl, use a stand mixer or hand mixer to combine the Egg (2), Cream Cheese (2 tablespoon), Whipping Cream (2 tablespoon), Butter (4 tablespoon), and Vanilla Extract (2 teaspoon).
Add the flour mixture into the egg mixture and beat until thoroughly combined, but try not to overmix.
Pour batter into the prepared muffin cups. Place a couple of Fresh Blueberries (2 tablespoon) on top of the batter in each cup. Bake for 12 minutes, or until golden brown on top.
Serve warm with a bit more butter on top if desired.