Preheat your oven to 400°F (200°C). Line a 12-cup muffin pan with paper liners or lightly grease each cup.
In a large bowl, whisk together the flour, sugar, salt, and baking powder until well combined.
1 ½ cups all-purpose flour, ½ cup granulated sugar, ¼ teaspoon salt, 2 teaspoons baking powder
In a separate bowl, whisk together the oil, egg, milk, and vanilla extract until smooth and blended.
⅓ cup vegetable oil, 1 large egg, ⅓ cup milk, 1 teaspoon vanilla extract
Pour the wet ingredients into the dry ingredients and stir gently until just combined. Be careful not to overmix—lumpy batter makes fluffier muffins!
Gently fold in the blueberries, chopped strawberries, and white chocolate chips for that perfect patriotic mix.
½ cup fresh blueberries, ½ cup fresh strawberries, ½ cup white chocolate baking chips
Scoop the batter into the muffin cups, filling each one about halfway full. Bake for 15–20 minutes, or until the tops are golden and a toothpick inserted into the center comes out clean.
Let the muffins cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.
Serve and enjoy!