Description:This Creamy Cheesy Potato Bake features thinly sliced potatoes layered in a rich garlic cream sauce with cheddar and Parmesan, then baked until tender, bubbly, and beautifully golden. It’s an easy comfort-food side dish for Sunday dinners, holidays, potlucks, or family meals.Prep Time: 20 minutesCook Time: 70–80 minutesRest Time: 10 minutesTotal Time: About 1 hour 50 minutesServings: 8Ingredients3 pounds Russet or Yukon Gold potatoes3 tablespoons unsalted butter3 cloves garlic, minced3 tablespoons all-purpose flour1½ cups whole milk1 cup heavy cream2 cups sharp cheddar cheese, freshly shredded and divided½ cup Parmesan cheese, freshly grated and divided1 teaspoon salt½ teaspoon black pepper½ teaspoon onion powder½ teaspoon paprikaFresh parsley or chives for garnish, optionalInstructionsPreheat the oven: Preheat your oven to 375°F. Lightly grease a 9×13-inch baking dish.Prepare the potatoes: Wash and peel the potatoes if desired. Slice them into thin, even rounds, approximately ⅛ inch thick.Start the sauce: Melt the butter in a medium saucepan over medium heat. Add the minced garlic and cook for about 30 seconds, just until fragrant.Add the flour: Stir in the flour and cook for about 1 minute, stirring constantly.Make it creamy: Gradually whisk in the whole milk, followed by the heavy cream. Add the salt, black pepper, onion powder, and paprika. Cook gently, stirring frequently, until the sauce begins to thicken.Add the cheese: Reduce the heat to low. Stir in 1½ cups cheddar and ¼ cup Parmesan a little at a time until melted and smooth.Layer the potatoes: Arrange one-third of the sliced potatoes in the prepared baking dish, slightly overlapping them. Spoon one-third of the cheese sauce over the potatoes. Repeat the layers until all the potatoes and sauce are used.Add the topping: Sprinkle the remaining ½ cup cheddar and ¼ cup Parmesan evenly over the top.Bake covered: Cover the baking dish with foil and bake for about 45 minutes.Finish uncovered: Remove the foil and bake for another 25–35 minutes, or until the potatoes are completely tender and the cheese is bubbling and golden brown.Rest and serve: Let the potato bake rest for about 10 minutes before serving. Garnish with fresh parsley or chives if desired.Tips for the Best ResultsSlice your potatoes evenly so they cook at the same rate.Freshly shredded cheese melts beautifully into the creamy sauce.Don't let the cheese sauce boil aggressively after adding the cheese.If the top browns before the potatoes are tender, loosely cover the dish with foil.Test the potatoes in the center of the casserole with a thin knife or fork.Let the casserole rest before serving so the creamy sauce has time to settle.StorageStore leftover Creamy Cheesy Potato Bake in an airtight container in the refrigerator. For the best quality, enjoy refrigerated leftovers within 3–4 days.Reheat individual portions in the microwave or warm larger portions covered in the oven until heated through.Serving SuggestionsServe your Creamy Cheesy Potato Bake with roast chicken, steak, meatloaf, ham, turkey, pork chops, green beans, roasted broccoli, or a fresh garden salad.