Balsamic Marinated Roast Beef, Mashed Potatoes, Sauteed Mushrooms, Baked Camembert with Herb Oil

INGREDIENTS

(2 1/2 to 3-pound) beef eye, round

1 lb

Crimini mushrooms

5 cloves

Garlic

2 tbsp

Marjoram, fresh leaves

5 tbsp

Rosemary, fresh

2 tbsp

Thyme, fresh leaves

lbs Yukon gold potatoes

1 cup

Balsamic vinegar

2 1/3 tbsp

Black pepper, freshly ground

Salt

Salt and freshly ground black pepper

2 tbsp

Herb oil from baked camembert and herb oil recipe

7/8 cup

Olive oil

1/4 cup

Butter

(8 to 10-ounce) wheel Camembert cheese

3 tbsp

Potato water