Gratineed Mustard Creamed Onions

 

1 pound frozen pearl onions, defrosted & drained of any liquid

1/4 cup unsalted butter

2 tablespoons flour

1-1/2 cups milk

3 tablespoons cream Sherry

1 tablespoon grainy mustard

1 tablespoon Dijon mustard

1/4 teaspoon nutmeg

Salt & pepper as required

1/2 cup grated or shaved parmesan cheese

 

Spray a shallow casserole or gratin dish with cooking spray. Preheat oven to 400. In a small pot melt butter and when hot whisk in flour. Cook whisking constantly for 2 minutes. Heat milk in microwave until hot but not boiling. Whisk into flour mixture and cook, stirring constantly until mixture comes to a boil and thickens. Add pearl onions, sherry, mustards and nutmeg. Taste for seasoning, adding salt and pepper as required. Return mixture to a boil, and then transfer to prepared gratin dish. Top with parmesan cheese. Bake at 400 for 30 to 40 minutes or until onions are cooked through and top is golden brown and bubbling. Serves 4 to 6.