Nutella Stuffed Cinnamon Sugar Muffins Ingredients Muffins 1/3 cup (5 Tablespoons or 75g) unsalted butter, softened to room temperature 1/2 cup (100g) granulated sugar 1 large egg 1 teaspoon vanilla extract 1/2 cup (120ml) milk (cow, almond, soy) 1 and 1/2 cups (190g) white whole wheat flour* 1 and 1/2 teaspoons baking powder 1/2 teaspoon