These Apple Cinnamon Streusel Muffins are an easy recipe so great for breakfast, school lunches or for a snack. Moist on the inside with a tasty crumble topping.
Preheat oven to 400°F (200°C) and set rack to center. Line a muffin pan with papers or spray with non-stick canola oil spray; set aside.
For the streusel, combine flour, sugar, butter and cinnamon using a fork until it resembles coarse crumbs. Add the Rice Krispies and combine together using fingertips. Set aside.
Prepare the muffin mix according to package directions for making 1/2 the package. Fold in the diced apple when batter is ready.