INGREDIENTS
2
Onions, small
6 cups
Yukon gold potatoes
1/2 tsp
Mustard, ground
1/3 cup
All-purpose flour
3/4 tsp
Salt
1/2 tsp
White pepper
1/4 cup
Butter
1 1/2 cups
Cheddar cheese, sharp yellow
2 cups
Half-and-half cream
1 1/2 cups
White cheddar cheese, sharp