Sardine and potato gratin
For this astonishing gratin, part gratin and part clafoutis, we combine potatoes, cooked shallots and pieces of sardines in oil.
5,780
1 hour 20 min.
Easy
2.25 €
4 people
11 IngredientsLast modified on: October 22th 2025
100 g 
100 g 
2 
2 
2 tins sardines in oil
800 g cooked potatoes
50 g 
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.
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.
Set aside.
Stage 4 - ⌛ 5 min.
Cut 800 g cooked potatoes into medium-sized pieces.
Stage 5 - ⌛ 20 min.
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.
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 % |
How much will it cost?
- For 4 people : 2.30 €
- Per person : 0.60 €
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Note: Be careful, these prices are only an estimate, you can consult the table of prices by ingredients used for this estimate.
This recipe uses (among others)
Cooked potatoes
Like these other recipes: Crispy potato and mushroom brik rolls, Baker's chicken and potato tart, Lemony cabbage and potato salad, Thin spinach and potato tart, Frichti from Bruxelles, ... See them all 58
Milk
Like these other recipes: Chaud-froid of grapefruit, pineapple and lime custard , Clementine-chestnuts brioche perdue, Dublin au gratin with Guinness, Old style brioche, Lime crémeux, ... See them all 67
Cream
Like these other recipes: Lille style chicken, Mushroom Pancakes au Gratin, Eggs Arsène, Spinach and Mushrooms with Pesto, Brioche tart with Comté cheese, ... See them all 124
Grated cheese
Like these other recipes: Mushroom Pancakes au Gratin, Breton Pie, Breton galettes (pancakes), Stuffed tomatoes and courgettes, Thin spinach and potato tart, ... See them all 75
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