Cheesy root vegetable Gratin. I love the subtly sweet and earthy flavors of this combination of root vegetables mixed together with the savory and salty shredded gruyère cheese, garlic, thyme, and heavy cream. ✅ Grease baking dish with butter. ✅Slice sweet potato, gold potato and purple potato into very thin rounds (using a mandoline is easiest). ✅The aluminum foil should be tightly wrapped around the baking dish to allow the dish to steam a little and for the vegetables to get tender before unc

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