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Sardine and potato gratin

Name: Sardine and potato gratin
Prep time: 29 min
Cook time: 51 min
Total time: 1 h 20 min
Yield: 4 people
Cuisine: French
Ingredients: 100 g milk; 100 g cream; 2 eggs; 2 shallots; 2 tins sardines in oil; 800 g cooked potatoes; oil; parsley; 50 g grated cheese; salt; pepper

For this astonishing gratin, part gratin and part clafoutis, we combine potatoes, cooked shallots and pieces of sardines in oil.

5,229

1 hour 20 min. difficulté

Easy

2.25 €

4 people

11 Ingredients

Last modified on: October 22^th 2025

For 4 people, you will need:

1 100 g milk
2 100 g cream
3 2 eggs
4 2 shallots
5 2 tins sardines in oil
6 800 g cooked potatoes
7 oil
8 parsley
9 50 g grated cheese
10 salt
11 pepper
Total weight: 1,200 grams

Times for this recipe

Preparation: 30 min.

Cooking: 55 min.

All in all: 1 hour 20 min.

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Step by step recipe

Stage 1 - ⌛ 5 min.

Preparing the appareil

Mix 100 g milk, 100 g cream, 2 eggs, salt and pepper in a large bowl.

Mix with a whisk and set aside.

Stage 2 - ⌛ 3 min.

Preparing the gratin

Prepare and chop 2 shallots.

Set aside.

Stage 3 - ⌛ 3 min.

Remove the sardines from the tins and cut into small pieces (you can remove the bones and tails if you prefer).

Set aside.

Stage 4 - ⌛ 5 min.

Cut 800 g cooked potatoes into medium-sized pieces.

Stage 5 - ⌛ 20 min.

Brown them to taste in a large frying pan in a little oil, adding salt at the end.

Set aside.

Stage 6 - ⌛ 1 min.

In the same pan, pour 3 tablespoons of oil, and when hot, add the shallots.

Season with salt and pepper, and cook for 1 minute, stirring constantly.

Set aside.

Stage 7 - ⌛ 3 min.

Assembling the gratin

Preheat oven to 200°C (390°F).

Pour half the potatoes into a buttered gratin dish.

Stage 8 - ⌛ 2 min.

Pour over the cooked shallots.

Stage 9 - ⌛ 2 min.

Then the sardines.

Stage 10 - ⌛ 2 min.

Chopped parsley.

Stage 11 - ⌛ 2 min.

And finally, the other half of the potatoes.

Stage 12 - ⌛ 2 min.

Pour in the egg mixture, then sprinkle with 50 g grated cheese.

Stage 13 - ⌛ 30 min.

Bake at 200°C (390°F) for approximately 30 minutes.

Remarks

You can replace sardines in oil with other fish, fresh, smoked or canned too.

Keeping: A few days in the fridge, protected by cling film.

Source: Home made.

Nutritional information

	Proteins (gr)	Carbohydrates (gr)	Fats (gr)	Energy value (in k-calories)	Energy value (in k-joules)
Whole recipe	50 RDI=20 %	170 RDI=20 %	60 RDI=9 %	1,410 RDI=70 %	5,900 RDI: 70 %
Per 100 g	4 RDI=2 %	10 RDI=1 %	4 RDI=1 %	120 RDI=6 %	490 RDI: 6 %
Per person	10 RDI=5 %	40 RDI=4 %	10 RDI=2 %	350 RDI=20 %	1,480 RDI: 20 %