Preheat the oven to 180°C (356°F).
Combine almond flour, baking powder, and salt in a bowl.
In another bowl, whisk together eggs, erythritol, melted coconut oil, and vanilla extract.
Mix the dry ingredients with the wet ingredients to form the batter.
Gently fold the blueberries into the batter.
Divide the batter into muffin tins.
Bake in the preheated oven for 20-25 minutes at 180°C (356°F).
Cool muffins on a wire rack.