Old Fashioned Blueberry Muffins

Bahan-bahan (12 porsi)

• 1 cup milk
• ½ cup (1 stick) unsalted butter
• 1 teaspoon grated fresh orange zest
• 1 teaspoon vanilla extract
• 2 large eggs
• 2 cups all purpose flour
• ¾ cup granulated white sugar
• 2½ teaspoons baking powder
• ¾ teaspoon salt
• 1¾ cups fresh blueberries, (divided (or frozen, unthawed))