Creamy potato and leek gratin

Name: Creamy potato and leek gratin
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: International
Ingredients: 1 lb sweet potatoes; 1 lb potatoes; 1 leek; 1 tsp thyme; 1 clove garlic; 4.5 oz Gruyère cheese; 2 oz Parmesan cheese; 1 cup heavy cream; 0.5 cup vegetable broth; 0.25 cup chopped hazelnuts; salt; pepper

Based on 37 ratings

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Vanessa Pass

Food Editor at Kitchen Stories

"This is an easy, no-mess gratin that can also be made with other vegetables, like carrot or pumpkin. You can also toss in beetroot to add earthy flavors and a splash of color to the dish. Pair this with fish or meat, or have it as a delicious main dish with a light salad."

Difficulty

Easy 👌

Preparation

20 min

Baking

50 min

Resting

0 min

Ingredients

2Servings

225 g

sweet potatoes

225 g

potatoes

leek

½ tsp

thyme

½ clove

garlic

62½ g

Gruyère cheese

30 g

Parmesan cheese

125 ml

heavy cream

50 ml

vegetable broth

12½ g

chopped hazelnuts

salt

pepper

MetricImperial

Utensils

oven, 1 peeler, 1 cutting board, 1 knife, 1 bowl, 1 cooking spoon, 1 grater, 1 baking dish

How-To Videos

See all

How to clean and cut leeks

How to chop nuts

How to grate cheese

Homemade vegetable stock

Nutrition per serving

Cal643

Fat41 g

Protein21 g

Carb49 g

Step 1/ 4
- 225 g sweet potatoes
- 225 g potatoes
- ½ leek
- ½ tsp thyme
- ½ clove garlic
- oven
- 1 peeler
- 1 cutting board
- 1 knife
Preheat oven to 200°C/400°F. Peel and slice both potatoes into thin discs. Slice leek into rings. Pluck leaves from thyme sprig and chop. Mince garlic.
Step 2/ 4
- 62½ g Gruyère cheese
- 30 g Parmesan cheese
- 125 ml heavy cream
- 50 ml vegetable broth
- salt
- pepper
- 1 bowl
- 1 cooking spoon
- 1 grater
Grate Gruyère and Parmesan cheeses. Mix together cream, vegetable broth, grated Parmesan, garlic, and thyme in a bowl. Season with salt and pepper.
Step 3/ 4
- 1 baking dish
Layer potato and leek slices into a baking dish. Top with cream mixture.
Step 4/ 4
- 12½ g chopped hazelnuts
Transfer gratin to oven and bake at 200°C/400°F for approx. 25 min. Remove from the oven, sprinkle with grated Gruyère, and bake for another 15 min. Sprinkle chopped hazelnuts all over and let bake for another 10 min. Enjoy!
Enjoy your meal!