Bakery-Style Chocolate Chip Muffins

Name: Bakery-Style Chocolate Chip Muffins
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: American
Ingredients: 2 & ½ cups (315g) all-purpose flour; 1 Tbsp baking powder; ½ tsp baking soda; ½ tsp salt; ½ cup (114g) unsalted butter (melted and cooled for 5 minutes (see notes*)); 1 cup (200g granulated sugar; 2 large eggs; 1 cup (240ml) buttermilk ((see notes**)); 1 Tbsp pure vanilla extract; 1 & ½ cups (265g) semi-sweet chocolate chips; more chocolate chips; sparkling or coarse sugar