Air Fryer Blueberry Lemon Muffins

Preheat your air fryer to 320°F (160°C) for 3–5 minutes.
Lightly grease 3–4 silicone muffin cups or small ramekins.
In a medium bowl, whisk together the 1 cup all-purpose flour, 1/2 cup granulated sugar 1 teaspoon baking powder, and 1/2 teaspoon salt until well combined.
In another bowl, combine the 1/4 cup milk, 1 large egg, melted 1/4 cup melted butter, 1 tablespoon lemon zest, 2 tablespoons lemon juice, and 1 teaspoon vanilla extract. Whisk until smooth.
Pour the wet mixture into the dry ingredients. Gently stir until just combined—don’t overmix.
Fold in the 1/2 cup fresh blueberries carefully to avoid crushing them.
Divide the batter evenly among the prepared muffin cups, filling about 2/3 full.
Place the muffin cups in the air fryer basket. Cook at 320°F (160°C) for 10–12 minutes. Check doneness with a toothpick—it should come out clean.
Let muffins cool for 5 minutes before removing from cups.