1Heat oven to 375. Spray 12 muffin cups well;set aside.
In a large mixing bowl, combine sour cream with dry custard mix. Add remaining ingredients; stir 50 to 75 strokes until dry particles are moistened. Fill muffin cups 2/3 full; if desired, sprinkle tops with cinnamon/sugar mixture. Bake for 20-25 minutes until light golden brown. Serve hot.