The recipe makes between twelve (12) and fourteen (14) muffins depending upon size. The calories listed are an approximation based on the ingredients, twelve (12) muffins, and a serving size of one (1) pumpkin spice muffin. Additionally, the calorie count does not include the extra cinnamon sticks seen in the photo. Actual calories will vary. The muffins can be stored in a container on your counter for up to three (3) days.