Homemade Rhubarb Muffins with Greek Yogurt and Cinnamon Sugar Topping - Recipes by Lena

Ingredients

• 1 cup all-purpose flour
• 1 cup whole-wheat flour
• ¾ cup granulated sugar
• 2-½ teaspoons baking powder
• 1 teaspoon ground cinnamon
• ½ teaspoon baking soda
• ½ teaspoon kosher salt
• 1 cup 2% plain Greek yogurt or sour cream
• 8 tablespoons unsalted butter, melted and cooled slightly
• 2 large eggs
• 1 teaspoon pure vanilla extract
• 1-½ cups ¼-inch-diced rhubarb
• 3 tablespoons granulated sugar
• ½ teaspoon ground cinnamon