Blue Cheese and Rosemary Scalloped Potatoes
Blue Cheese and Rosemary Scalloped Potatoes are a rich and elegant side dish featuring tender potato layers baked in a creamy blue cheese sauce with fragrant rosemary. Finished with a golden, bubbly topping, this comforting casserole is perfect for holidays, dinner parties, or family meals.
- Prep Time: 20 minutes
- Cook Time: 1 hour 15 minutes
- Total Time: 1 hour 50 minutes
- Yield: 8 servings
- Category: Side Dish
- Method: Bake
- Cuisine: American
- Diet: Vegetarian
Ingredients
- Yukon Gold or Russet potatoes, thinly sliced
- Unsalted butter
- Yellow onion, finely diced
- Garlic, minced
- Heavy cream
- Whole milk
- Blue cheese, crumbled
- Gruyère or sharp cheddar cheese, shredded
- Fresh rosemary, finely chopped
- Fresh thyme (optional)
- All-purpose flour
- Salt
- Black pepper
- Fresh parsley, chopped, for garnish (optional)
Instructions
- Preheat the oven to 375°F (190°C) and grease a 9×13-inch baking dish with butter.
- Melt the butter in a saucepan over medium heat. Add the onion and cook for about 5 minutes until softened.
- Stir in the garlic and cook for 30 seconds until fragrant.
- Sprinkle in the flour and cook for 1 minute, stirring constantly.
- Gradually whisk in the milk and heavy cream until smooth.
- Add the rosemary, thyme if using, black pepper, and a small amount of salt. Simmer until the sauce begins to thicken.
- Remove from the heat and stir in the blue cheese until mostly melted.
- Arrange one-third of the sliced potatoes in the prepared baking dish.
- Spoon one-third of the cream sauce over the potatoes and sprinkle with some of the Gruyère or cheddar.
- Repeat the layers, finishing with the shredded cheese on top.
- Cover with foil and bake for 45 minutes.
- Remove the foil and bake for another 25–30 minutes until the potatoes are tender and the top is golden brown.
- Let the casserole rest for 10–15 minutes before serving.
- Garnish with fresh parsley and extra rosemary if desired.
Notes
- Yukon Gold and Russet potatoes both work well for this recipe.
- Assemble the casserole up to 24 hours ahead and refrigerate before baking.
- Add cooked bacon or sautéed mushrooms for extra flavor.
- Broil for 2–3 minutes at the end for an extra crispy topping.
- Store leftovers in the refrigerator for up to 4 days or freeze for up to 2 months.
Nutrition
- Serving Size: 1 serving
- Calories: 430 kcal
- Sugar: 4 g
- Sodium: 510 mg
- Fat: 29 g
- Saturated Fat: 17 g
- Unsaturated Fat: 10 g
- Trans Fat: 0 g
- Carbohydrates: 32 g
- Fiber: 3 g
- Protein: 13 g
- Cholesterol: 85 mg