European Kitchen - "Roast with Gravy Sauce"

Roast with Gravy

Roast piece

2 tablespoons butter

2 tablespoons oil

2 large onions

6 garlic cloves

1 carrot

2 rosemary sprigs

Salt and pepper

2 bay leaves

½ teaspoon nutmeg

For the sauce

1 tablespoon butter

1 tablespoon flour

2 cups mushrooms

1 cup cream

To serve

Mashed potatoes

Vegetables as desired