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Cheesy Caramelised Onion and Mushroom Gratin

Cheesy Caramelised Onion and Mushroom Gratin

with Garlicky Cabbage

Sam Richards
Sam RichardsPublished on October 22, 2024

Celebrate Easter with crowd-pleasing recipes inspired by feasting dishes from around the world. An Alpine comfort food, gratin originates from French cuisine and can be made of any ingredient that's baked in a creamy sauce until golden, however most of us know the potato version.

Tags:
Veggie
Allergens:
Milk

The quantities provided above are averages only.

Boxes and ingredients are packed in facilities that handles Peanut, Nuts, Sesame, Fish, Crustaceans, Milk, Egg, Mustard, Celery, Soya, Gluten and Sulphites. Due to the war in Ukraine, it has been necessary to substitute sunflower oil with rapeseed oil in some products without a label change. The FSA have advised that allergic reactions to rapeseed oil are rare.

Total40 minutes
Active 25 minutes
DifficultyEasy

Ingredients

serving amount

450 grams

Potatoes

2 unit(s)

Onion

4 unit(s)

Garlic Clove**

60 grams

Mature Cheddar Cheese**

(Contains: Milk)

80 grams

Sliced Mushrooms**

150 grams

Creme Fraiche**

(Contains: Milk)

15 grams

Vegetable Stock Paste

40 grams

Fig Jam

150 grams

Shredded Savoy Cabbage**

Not included in your delivery

100 milliliter(s)

Reserved Potato Water

1 tsp

Sugar

20 grams

Butter

Nutritional information

Energy (kJ)3230 kJ
Energy (kcal)772 kcal
Fat44 g
of which saturates26.8 g
Carbohydrate77.6 g
of which sugars28.1 g
Dietary Fibre11.1 g
Protein19.8 g
Salt2.4 g
Always refer to the product label for the most accurate ingredient and allergen information.

Utensils

Garlic Press
Box Grater
Colander
Large Saucepan
Large Frying Pan
Baking Tray
Oven dish

Cooking Instructions and Tips

1

Preheat your oven to 220°C/200°C fan/gas mark 7.

Bring a large saucepan of water with 0.5 tsp salt to the boil for the potatoes. Peel and slice the potatoes into 1cm thick rounds.

Halve, peel and thinly slice the onions. Peel and grate the garlic (or use a garlic press). Grate the cheese.

Once boiling, add the potato slices to the water and simmer until just tender, 8-12 mins. Once cooked, reserve some of the potato water (see pantry for amount), carefully drain in a colander.

2

While the potatoes are boiling, heat a drizzle of oil in a large frying pan on medium heat. 

Once hot, add the onions and mushrooms. Season with salt and pepper and fry, stirring occasionally, until golden, 10-12 mins.

Next, add the half the garlic and sugar (see pantry for amount). Cook until caramelised, 1-2 mins more.

3

Once the onions and mushrooms have caramelised, add the creme fraiche, vegetable stock paste, reserved potato water and half the cheese to the pan.

Mix together, bring to the boil, then remove from the heat. Season to taste with salt and pepper.

4

Lay half the cooked potato slices in layers in an appropriately sized ovenproof dish and pour over half the creamy onion and mushroom sauce. Drizzle over half the fig jam.

Repeat with the remaining potatoes, creamy sauce and fig jam, then sprinkle over the remaining cheese to finish.

Bake on the top shelf of your oven until golden brown and bubbly, 15-20 mins. TIP: Put the dish onto a baking tray to catch any drips.

Meanwhile, give your frying pan a quick wipe clean.

5

When your gratin is nearly ready, heat a drizzle of oil in the (now empty) large frying pan on medium heat.

Once hot, add the cabbage and remaining garlic. Stir-fry for 2 mins.

Season with salt and pepper, add a splash of water, mix well and cover with a lid (or foil). Cook until just tender, 3-4 mins.

Once cooked, stir in the butter (see pantry for amount) until melted, 1 min. Remove from the heat.

6

Carefully slice your potato gratin into portions and share between your plates.

Serve with the garlicky cabbage on the side. 

Enjoy!

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