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Sardine and potato gratin
For this astonishing gratin, part gratin and part clafoutis, we combine potatoes, cooked shallots and pieces of sardines in oil.
4,428
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.
If you start now, at , you will finish around : ?.Change start time
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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
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Milk
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Cream
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Grated cheese
Like these other recipes: Hachis parmentier, Spinach on toast with bechamel, Celeriac and mushroom gratin, Gratin-style spinach and chicken omelette , Gratin "grilled inside", ... See them all 75
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