Blueberry Muffin Recipe

Name: Blueberry Muffin Recipe
Prep time: 30 min
Cook time: 25 min
Total time: 55 min
Cuisine: American
Ingredients: 192 grams all-purpose flour (1 1/2 cups); 150 grams granulated sugar (2/3 cup); 2 1/4 teaspoons baking powder; 1/2 teaspoon kosher salt; 1 large egg, at room temperature; 60 milliliters vegetable oil (1/3 cup); 120 milliliters whole milk (1/2 cup); 1 teaspoon vanilla extract; 150 grams fresh blueberries (5 1/4 ounces; about 1 cup), plus more for decorating; Demerara sugar, for sprinkling