• In a large mixing bowl, mix the 1 1/2  cup all-purpose flour 3/4 cup granulated sugar 2 teaspoon baking powder, and 2 teaspoon salt, and mix well.
• In another mixing bowl, mix the 1/3 cup vegetable oil 1 large egg, 2 teaspoons vanilla extract and 2/3 cup buttermilk.
• Then mix the wet ingredients into the dry ingredients, mix well.
• Fold in the 1 cup frozen wild blueberries, mix well.
• Spray your muffin tin with cooking spray or line with muffin liners.
• Spoon the batter into the muffin cavity, filling about 2/3 way full.
• Spoon a couple of tablespoons of topping on each muffin.
• Set the muffin tin into the air fryer basket, set the temperature to 320 degrees F for 12-15 minutes.
• Let slightly cool before serving.

Topping Instructions:

• In a small mixing bowl, mix the 1/3 cup raw sugar, 1/3 cup all-purpose flour and 4 tablespoons butter (cold). Mix until it’s crumbly.