Fluffy Vanilla Muffins: A Simple and Delicious Treat

Preheat your oven to 350°F (175°C). Line a muffin tin with paper liners or grease the cups with butter or cooking spray.
Combine Dry Ingredients:

In a medium bowl, whisk together the flour, sugar, baking powder, and salt. Set aside.
Mix Wet Ingredients:

In a separate bowl, whisk together the egg, milk, melted butter, vanilla extract, and sour cream (if using).
Combine Wet and Dry Ingredients:

Pour the wet ingredients into the dry ingredients and stir gently with a spatula or spoon until just combined. Be careful not to overmix, as this can make the muffins dense. The batter should be slightly lumpy.
Fill the Muffin Tin:

Divide the batter evenly between the 12 muffin cups, filling each about 2/3 of the way full.
Bake the Muffins:

Bake for 18-22 minutes, or until a toothpick inserted into the center of a muffin comes out clean.
Cool and Serve:

Let the muffins cool in the pan for 5 minutes, then transfer them to a wire rack to cool completely.
Serving and Storage Tips: