Potato Gratin - Classic Recipe

Featured in Perfect Companion Dishes.

Classic potato gratin with thin potato slices in creamy cream-milk mixture, seasoned with nutmeg and topped with cheese. Simple and foolproof.
Rehan Magic House Recipes
Updated on Mon, 24 Mar 2025 02:39:38 GMT
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This velvety potato gratin combines tender potato slices with a silky cream sauce and a golden brown cheese crust. The perfect balance between creamy filling and crispy surface makes it a timeless classic of home cooking.

In my kitchen, this gratin is especially popular on cold days. The combination of simple ingredients creates a surprisingly aromatic dish.

Carefully Selected Ingredients

  • Potatoes: Primarily waxy variety for optimal texture
  • Cream: Full-bodied for velvety sauce
  • Cheese: Flavorful for perfect gratination
  • Nutmeg: Essential for the classic taste
  • Onion: For subtle depth of flavor
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Detailed Preparation

Preparation:
Slice potatoes uniformly thin
Finely dice onion
Press garlic
Generously grease baking dish
Mix Sauce:
Combine cream and milk
Stir in seasonings evenly
Fold in Parmesan
Check consistency
Layering:
Distribute potatoes and onions evenly
Pour sauce over
Gently mix everything
Smooth surface
Baking Process:
First phase bake without cheese
Allow sauce to reduce
Add cheese and butter at the end
Develop golden brown crust

In my family, this gratin is the absolute favorite for cozy dinners. Especially the crispy cheese crust makes it irresistible.

Perfect Variations

Refine the basic recipe with aromatic herbs. Fresh thyme or rosemary give a Mediterranean note. For an autumnal version, mushrooms between the potato layers are suitable. Leeks create additional vegetable layers. For meat lovers, fried bacon pieces are a good match.

Optimal Potato Selection

Primarily waxy varieties like Yukon Gold or new potatoes are ideal. They retain their shape yet become tender. Starchy varieties break down too quickly. Don't pre-cook the potatoes - they cook perfectly in the cream-milk mixture.

Perfect Texture

For even cooking, cut the potato slices really thin - about 2-3 mm. A mandoline slicer or the slicing function of a food processor is ideal. The sauce should just cover the potatoes. Too little liquid leads to dry spots.

Storage and Reheating

The gratin keeps in the refrigerator for up to three days. When reheating, cover with aluminum foil and warm at 300°F to prevent drying out. For individual portions, the microwave is also suitable. Freezing is possible, but it tastes best fresh.

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Serving Suggestions

The gratin is perfect as a side dish with roast beef or chicken. As a standalone dish, serve it with a crisp green salad. For a rustic dinner, homemade bread pairs well. A glass of white wine completes the taste experience.

After many years of experience with various gratin recipes, this version has proven to be the perfect balance between simplicity and flavor. The combination of creamy sauce and crispy crust makes this potato gratin a timeless classic of home cooking. I find it particularly fascinating how these simple ingredients meld into such an aromatic dish through slow baking.

Frequently Asked Questions

→ Which potatoes work best for potato gratin?
Use mainly waxy potatoes as they retain their shape and don't become too soft.
→ How do I get particularly thin potato slices?
This works best with a mandoline or a food processor with a slicing attachment. The slices should be about 2-3 mm thin.
→ Can I prepare the potato gratin in advance?
Yes, you can prepare it up to a day in advance and store it in the refrigerator. Then expect a slightly longer baking time.
→ Which cheese should I use for topping?
Flavorful cheese varieties like Gouda, Emmental or Gruyère are ideal. You can also mix cheese varieties for more flavor.
→ Why isn't my gratin cooking properly?
If the potato slices are too thick or packed too tightly, the cooking time increases. Check with a fork to see if the potatoes are soft.
→ Can I also prepare the gratin without cream?
Yes, you can completely replace the cream with milk for a lighter version, although it will be less creamy.

Classic French potato casserole

Creamy, classic potato gratin topped with cream and cheese. Easy to prepare and perfect as a side dish with meat or with salad.

Prep Time
15 Minutes
Cook Time
60 Minutes
Total Time
75 Minutes
By: Reham

Category: Side Dishes

Difficulty: Easy

Cuisine: French

Yield: 4 Servings

Dietary: Vegetarian, Gluten-Free

Ingredients

→ Main Ingredients

01 1.75 lbs (800g) waxy potatoes
02 1 onion
03 1 clove garlic
04 1 cup (250g) heavy cream (30%) or cooking cream (15%)
05 1 cup (250ml) whole milk (at least 3.5% fat)

→ Seasonings and Topping

06 1 teaspoon salt
07 Freshly ground pepper
08 1/2 teaspoon ground nutmeg
09 2 tablespoons grated Parmesan cheese
10 3/4 cup (80g) grated cheese
11 2 teaspoons butter

Instructions

Step 01

Preheat oven to 350°F (180°C) conventional heat.

Step 02

Peel the potatoes and slice them very thinly. Finely chop the onion and garlic. Grease a baking dish with butter.

Step 03

Pour the cream and milk into the baking dish and mix with salt, pepper, nutmeg, and Parmesan. Then fold in the potato slices, onions, and garlic.

Step 04

Bake in the preheated oven for 30 minutes, then sprinkle with grated cheese and small dots of butter and bake for another 30 minutes. (Depending on your oven, baking time may be longer)

Notes

  1. Keeps in the refrigerator for 3 days, suitable for freezing
  2. This recipe serves 4 people as a generous side dish. For example, with salad, meatballs, or breaded schnitzel.

Tools You'll Need

  • Baking dish
  • Oven
  • Mandoline or sharp knife
  • Stirring spoon

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 391
  • Total Fat: ~
  • Total Carbohydrate: ~
  • Protein: ~