Preheat oven to 375 degrees F. For large muffins only grease 9 muffin cups. Fill the other three cups 1/2 way with water. In medium bowl, combine first 6 ingredients. Stir in remaining ingredients only until moistened. Spoon batter into muffin cups.
Bake for 15 to 20 minutes. Immediately remove from pan and serve warm. Muffins can be reheated when wrapped in a paper towel and put in the microwave for approximately 15 seconds depending on the microwave wattage.