Blueberry Lemon Muffins

Bahan-bahan (10 porsi)

• 5 tablespoons unsalted butter, softened
• ½ cup sugar (I used organic turbinado sugar)
• 1 large egg
• ¾ cup plain Greek yogurt (I used 0% fat plain Chobani yogurt)
• ½ teaspoon grated lemon zest
• 1 ½ cups whole wheat pastry flour
• 1 ½ teaspoon baking powder
• ¼ teaspoon baking soda
• ¼ teaspoon salt
• ¾ cup blueberries, fresh or frozen (if frozen, don’t bother defrosting). I suspect any muffin-friendly fruit would be great!