INGREDIENTS
2
lbs Mushrooms, assorted wild
1
Onion, medium
1 tbsp
Thyme, leaves
2
lbs Yukon gold potatoes
1
Pepper, Freshly ground
1 1/2 tsp
Salt, coarse
3 1/2 oz
finely grated parmesan cheese
2 tbsp
Butter, unsalted
1 cup
Gruyere cheese
1/2 cup
Heavy cream
3/4 cup
Whole milk
1/4 cup
White wine, dry