INGREDIENTS
•
1 tablespoon olive oil or unsalted butter
•
2 shallots, finely chopped
•
1 pound sliced button mushrooms
•
1 cup heavy cream
•
2 tablespoons sour cream
•
1 teaspoon salt
•
1 cup milk
•
1 cup grated Parmesan cheese
•
1/4 cup chopped fresh chives