This Potato Au Gratin or Dauphinoise is so simple and indulgent. It makes a delicious side dish and is perfect to make ahead and bring to your next potluck. Recipe Ingredients: * 2 pounds (about 900 grams) of Yukon Gold potatoes, peeled and thinly sliced * 2 cups (480 ml) of heavy cream * 2 cloves of garlic, minced * 1 cup (100 grams) of shredded Gruyere cheese * 1 cup (100 grams) of shredded Parmesan cheese * Salt and pepper to taste * Fresh thyme leaves (optional, for garnish) Instructions: 1. Preheat your oven to 375°F (190°C). Grease a baking dish with butter or cooking spray. 2. In a saucepan, combine the heavy cream and minced garlic. Bring to a simmer, then add the thinly sliced potatoes. Let them cook in the cream for about 5 minutes until slightly softened. 3. Layer 1/3 of the par-cooked potatoes in the baking dish. 4. Season the potatoes with salt and pepper to taste. Sprinkle 1/3 of the shredded Gruyere and Parmesan cheese over the potatoes. 5. Repeat the layers with the r...