Creating Blueberry Chocolate Chip Muffins is easy! Follow these steps to ensure perfect results:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and line a muffin tin with paper liners.
2. Mix Dry Ingredients: In a large bowl, whisk together the flour, granulated sugar, brown sugar, baking powder, baking soda, and salt.
3. Combine Wet Ingredients: In another bowl, beat the egg and then add the milk, vegetable oil, and vanilla extract. Mix well until combined.
4. Combine Mixtures: Gradually pour the wet ingredients into the dry mixture, stirring gently until just combined. Do not overmix!
5. Fold in Blueberries and Chocolate Chips: Gently fold in the blueberries and chocolate chips until evenly distributed.
6. Fill Muffin Tin: Using a scoop or spoon, fill each muffin cup about ¾ full with batter.
7. Bake: Place the muffin tin in the preheated oven and bake for 20-25 minutes or until a toothpick inserted in the center comes out clean.
8. Cool Muffins: Once done, remove the muffins from the oven and let them cool in the tin for about 10 minutes before transferring to a wire rack to cool completely.

With these steps, you’ll create scrumptious muffins that everyone will love!