Name: Potato & Sweet Potato Gratin with Bourbon-Laced Cream Sauce
Yield: 8
Ingredients: Bourbon Cream Sauce; 1 tbsp extra virgin olive oil plus extra for the baking dish; 1/2 cup heavy whipping cream or fromage blanc (see note); 2 tbsp good quality Bourbon, optional; 4 large shallots, peeled and sliced about 1/4-inch thick; 1 tsp kosher salt; Freshly ground pepper, to taste; 2 tbsp fresh thyme leaves or 2 tsp dried thyme leaves; Potato Gratin; 2 cups grated Monterey Jack cheese; 2 lb sweet potatoes, peeled and sliced thinly; 3 lb potatoes, Russets, Yukon Gold, or red-skinned, or a combination (peel the Russets), sliced; 3 tbsp butter, softened; 1/4 cup grated Parmesan cheese; 2 tbsp chopped green onions, for garnish