Step #14 Reduce butter to 1 tbsp; proceed with recipe as directed.
Step #15 Ham-and-Swiss Muffins: Substitute shredded Swiss cheese for Cheddar; whisk in 2 tbsps Dijon mustard with milk & egg.
Step #16 Proceed with recipe as directed.
Step #17 Sausage-and-Cheese Muffins: Substitute 1 c hot or mild ground pork sausage, cooked & crumbled, for sliced ham.
Step #18 Proceed with recipe as directed.
Step #19 Chicken-and-Green Chile Muffins: Substitute 1 c finely sliced cooked chicken for ham & 2 c shredded Mexican four-cheese mix for Cheddar; add 1 (5-oz) can sliced green chiles.