Air Fryer Blueberry Crisp

Ingredients

• 1 cup frozen blueberries
• 2 teaspoons all-purpose flour
• 1 teaspoon lemon juice
• 1 pinch salt
• Topping:
• 3 tablespoons quick-cooking oats
• 1.5 tablespoons all-purpose flour
• 1.5 tablespoons brown sugar
• 0.5 teaspoon ground cinnamon
• 1.5 tablespoons salted butter, softened