Creating Strawberry Banana Muffins is quite straightforward when you follow these easy steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and line a muffin tin with paper liners or spray with cooking spray.
2. Mix Dry Ingredients: In a large bowl, combine the all-purpose flour, whole wheat flour, baking powder, baking soda, and salt.
3. Combine Sugars: In a separate bowl, whisk together the granulated sugar, brown sugar, vegetable oil, mashed bananas, buttermilk, and vanilla extract until smooth.
4. Combine Wet and Dry: Carefully add the wet mixture to the dry ingredients, stirring gently until just combined. Be sure not to overmix.
5. Fold in Strawberries: Gently fold in the chopped strawberries and nuts if you’re using any.
6. Fill Muffin Tin: Evenly distribute the muffin batter into the prepared muffin tin, filling each cup about 2/3 full.
7. Bake: Place in the preheated oven and bake for 20-25 minutes, or until a toothpick inserted in the center comes out clean.
8. Cool: Once baked, allow the muffins to cool in the pan for about 10 minutes, before transferring them to a wire rack to cool completely.
9. Enjoy: Once cooled, the muffins are ready to be enjoyed or stored for later.

Following these steps will lead you to some of the most delightful Strawberry Banana Muffins you’ve ever made!