Baked Blueberry Cinnamon Sugar Doughnuts

Bahan-bahan (12 porsi)

• 2 tablespoons salted butter, melted
• 1/3 cup whole milk at room temperature (or milk of choice)
• 1/4 cup plain Greek yogurt
• 1 large egg, at room temperature
• 2 teaspoons vanilla extract
• 1/4 cup granulated sugar
• 1 1/4 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1/4 -1/3 cup blueberry jam
• 2 tablespoons fresh or frozen blueberries
• 1/2 cup granulated sugar
• 3/4 -1 teaspoon ground cinnamon
• 4 tablespoons salted butter, melted