Preparing Creamy Scalloped Potatoes can be hassle-free when you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 375°F (190°C).

2. Prepare the Baking Dish: Grease a 3-quart baking dish with butter to prevent sticking.

3. Slice the Potatoes: Wash the potatoes and slice them thinly (about 1/8 inch thick) using a mandoline or sharp knife.

4. Make the Cream Mixture: In a mixing bowl, combine heavy cream, milk, minced garlic, salt, pepper, and thyme if desired. Mix until well combined.

5. Layer the Potatoes: Arrange half of the potato slices in the prepared baking dish. Overlap them slightly for even cooking.

6. Add Cheese: Sprinkle half of the shredded cheese over the first layer of potatoes.

7. Repeat Layers: Pour half of the cream mixture over the cheese layer. Repeat the same layering process with the remaining potatoes, cheese, and cream mixture.

8. Add Butter: Dot the top layer with small pieces of butter for added richness.

9. Cover with Foil: Cover the baking dish with aluminum foil to prevent the top from browning too quickly.

10. Bake: Place the dish in the preheated oven and bake for 45 minutes.

11. Remove Foil and Add Topping: After 45 minutes, carefully remove the foil, and sprinkle the top with grated Parmesan cheese.

12. Finish Baking: Return the dish to the oven and bake uncovered for an additional 15 minutes or until the cheese is golden and bubbly.

13. Cool and Serve: Allow the dish to cool for about 10 minutes before serving to let the layers set.