Cherry & Dennis Helper Habitat
French Tuna, Potato and Tomato Gratin
法式吞拿魚薯仔番茄焗盤
Recipe overview
Potato, tuna and tomato bake in layers beneath a light golden cheese topping.
01
Ingredients
Main ingredients
- 700 g medium potatoes
- 300 g canned tuna
- 400 g tomato
- 1 piece onion
- 120 g Cheddar cheese
- 150 ml cooking cream
Seasonings
- 1 tbsp cooking oil
- 1 tsp salt
- 1 tsp Black pepper
02
Tools
- knife
- cutting board
- pot
- colander
- baking dish
- mixing bowl
- oven
- oven mitts
- serving plate
03
Steps
Step 1
Preheat the oven to 190°C
Preheat the oven to 190°C.
Step 2
Peel potatoes and slice them 5 mm thick
Peel potatoes and slice them 5 mm thick.
Step 3
Boil potato slices for 6 minutes until partly tender
Boil potato slices for 6 minutes until partly tender.
Step 4
Drain potatoes and spread them out to release steam
Drain potatoes and spread them out to release steam.
Step 5
Drain tuna thoroughly and flake it
Drain tuna thoroughly and flake it.
Step 6
Slice tomatoes and thinly slice the onion
Slice tomatoes and thinly slice the onion.
Step 7
Lightly oil the baking dish
Lightly oil the baking dish.
Step 8
Arrange half the potatoes in an even layer
Arrange half the potatoes in an even layer.
Step 9
Layer tuna, onion and tomato over the potatoes
Layer tuna, onion and tomato over the potatoes.
Step 10
Top with remaining potatoes and pour over seasoned cream
Top with remaining potatoes and pour over seasoned cream.
Step 11
Scatter cheese and bake 30 minutes until golden
Scatter cheese and bake 30 minutes until golden.
Step 12
Rest 5 minutes before portioning and serving
Rest 5 minutes before portioning and serving.
Common mistakes
- Thick potato slices stay firm, while undrained tuna makes the gratin watery.
Tips
Part-cook the potatoes before layering for an evenly tender bake.
