3 famous creamed onions gratin Recipes

butter, frozen petite whole onions, thawed (birds eye), flour, dry white wine, minced fresh leaf thyme, cream or 1/3 cup half-and-half, dry mustard (or prepared horseradish), freshly grated nutmeg, white pepper, kosher salt , to taste, grated sharp cheddar cheese, snipped fresh chives, to garnish

grated parmesan cheese, freshly cracked black pepper, kosher salt, yukon gold potatoes, peeled and sliced thin, yellow onion, sliced into thin rings, shredded sharp cheddar cheese, heavy cream, strong chicken broth, dry white wine, rubbed sage, prepared horseradish or 1/2 tsp dry mustard, ground nutmeg, powdered parmesan cheese, paprika, parsley flakes