Blueberry Swirl Muffins - The BakerMama

Ingredients

• 2 and 1/2 cups all-purpose flour
• 1 and 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1/2 cup (1 stick) butter, melted
• 1/2 cup light brown sugar
• 1/2 cup granulated sugar
• 1 teaspoon vanilla extract
• 2 large eggs
• 1 cup whole milk
• 1/2 cup wild blueberry preserves (I use Bonne Maman)
• sparkling sugar, for muffin tops