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Blue Cheese Potato Gratin Casserole

Learn how to make a delicious and creamy blue cheese potato gratin casserole with these easy step-by-step instructions. This classic French dish is simple to make but will impress your dinner guests with is rich decadent flavor!
Prep Time15 minutes
Cook Time2 hours
Total Time2 hours 15 minutes
Course: 200+ Easy Side Dish Recipes Every Mom Needs
Keyword: blue cheese, gratin, potato, potato gratin
Servings: 6 -8
Author: Sweet Basil

Ingredients

  • 10 Cloves Garlic ends cut off
  • Olive Oil
  • 1 Tablespoon Unsalted Butter
  • 1/3 Cup Onion minced
  • 3 Cups Heavy Cream (or half and half or a combination of both)
  • 1 ½ teaspoon Salt divided
  • 1 Dash Nutmeg
  • 3 Russet Potatoes large, peeled and sliced 1/4" thick
  • 1 1/2 Cups Treasure Cave Crumbled Blue Cheese or Treasure Cave Crumbled Gorgonzola Cheese
  • 3/4 Cup Fresh Grated Parmesan Cheese
  • 1/4 Cup Fresh Chives minced
  • 2 Tablespoons Fresh Thyme
US Customary - Metric

Instructions

  • Preheat the oven to 375 degrees F.
  • Place the garlic in a piece of tin foil and drizzle with a little olive oil. Pinch into a tight bundle and place in the oven for 40 minutes or until browning and soft. Remove from the oven.
    10 Cloves Garlic, Olive Oil
  • Melt the butter in a saucepan over medium-low heat. Add the onions and cook until tender and beginning to brown, about 10 minutes.
    1 Tablespoon Unsalted Butter, 1/3 Cup Onion
  • Squeeze the garlic into the saucepan and mash with a wooden spoon.
  • Over medium heat, add the cream and salt (1/2 teaspoon) and nutmeg. Stirring to combine for about 5 minutes.
    3 Cups Heavy Cream, 1 ½ teaspoon Salt, 1 Dash Nutmeg
  • In a large bowl, toss the potatoes with about 1 teaspoon salt.
    3 Russet Potatoes
  • Butter a cast iron pan or 8x8 baking dish and layer the potatoes on the bottom.
  • Add 1/3 of the cheeses along with 1/3 of the chives and thyme. Repeat layers. 
    1/4 Cup Fresh Chives, 2 Tablespoons Fresh Thyme, 1 1/2 Cups Treasure Cave Crumbled Blue Cheese or Treasure Cave Crumbled Gorgonzola Cheese, 3/4 Cup Fresh Grated Parmesan Cheese
  • Pour the cream mixture gently over the potatoes and sprinkle a little more pepper on top. Bake for 1 hour.
  • Remove from the oven and garnish with additional chives and thyme if desired. 

Video

Nutrition

Serving: 1cup | Calories: 653kcal | Carbohydrates: 27g | Protein: 16g | Fat: 55g | Saturated Fat: 35g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 14g | Trans Fat: 0.1g | Cholesterol: 166mg | Sodium: 1093mg | Potassium: 683mg | Fiber: 2g | Sugar: 5g | Vitamin A: 2271IU | Vitamin C: 14mg | Calcium: 388mg | Iron: 2mg