INGREDIENTS
1 lb
Rare roast beef
2
Yellow onions, large
1 tsp
Dijon mustard
1 tsp
Horseradish, hot prepared
1/2 cup
Mayonnaise, prepared
1
Salt and pepper
1 tbsp
Sherry vinegar
4
Poppy seed rolls, good quality
1/2 cup
Tillamook sour cream
2 tbsp
Tillamook unsalted butter
1 cup
tillamook vintage extra sharp wite cheddar cheese, shredded