Yukon Gold Potatoes with Sweet Onion au Gratin
YUKON GOLD POTATOES WITH SWEET ONION AU GRATIN2 T. butter2 large Vidalia onions, thinly slicedSalt and black pepper1 t. ground thyme1 bay leaf2 lbs. baby Yukon gold potatoes½ to 2/3 c. heavy cream¾ c. freshly grated parmesan cheese½ lb. shredded…