Four-Onion Gratin

Yield:	1 servings
Categories:

1/4	c	Butter; (1/2 stick)
6		Leeks; (white and pale
		; green parts only),
		; sliced
2	lg	Onions; cut into eighths
8		Shallots; halved
2		Garlic cloves; minced
1 1/2		Bags frozen baby onions; thawed, drained
		; (10-ounce)
2	c	Whipping cream
2	tb	Dry breadcrumbs
2	tb	Chopped fresh parsley