• About
  • Recipes
  • Cuisines
  • Recipe Collections
  • Thermomix
menu icon
go to homepage
  • About
  • Recipes
  • Cuisines
  • Recipe Collections
  • Thermomix
search icon
Homepage link
  • About
  • Recipes
  • Cuisines
  • Recipe Collections
  • Thermomix
×
Home » Recipes

Creamy Gratin of Smoked Haddock, Tomatoes and Potatoes

Published: Mar 16, 2022 · Modified: Feb 21, 2025 by Deborah · This post may contain affiliate links · This blog generates income via ads · #sponsoredpost · Leave a Comment

Creamy gratin of smoked haddock, tomatoes and potatoes grey bowl with fork beside oval casserole dish
Jump to Recipe

This creamy gratin of smoked haddock, tomatoes and potatoes recipe is from Diana Henry's From the Oven to the Table recipe book.   David gave me a set of 3 of her books for Christmas...there's so many delicious recipes to make!!

I love fish, smoked haddock in particular, so this was always going to be on the list to get made from this recipe book!   It's 'almost' a one pan dish that's baked in the oven.  You do need to heat the cream and garlic in a saucepan!

The end result is a delicious full of smoked fish flavour dish, that's very comforting.   It is quite rich, but the fresh tomatoes help to balance it out.  Enjoy with some green veg and crusty bread on the side to soak up the creamy sauce!

Tip

  • This creamy gratin of smoked haddock, tomatoes and potatoes recipe is easily adapted if you’re cooking for less or more people.

Other recipes you might also like to try

  • Smoked haddock, black pudding and leek gratin in a rectangle Staub dish with a bowl of broccoli and green beans on the side.
    Smoked Haddock, Black Pudding and Leek Gratin
  • Cullen skink in a blue patterned bowl with a soup spoon and mustard napkin on the side, and soup pot in the background.
    Cullen Skink
  • Fish and chip pie in a round glass serving bowl plus a bowl of peas on the side
    Fish and Chip Pie
  • Fish pie in a rectangular ovenproof dish.
    Fish Pie

Click here for all fish dishes.

Recent New Recipes

  • Air fryer carrots and butternut squash in a teal, black and cream patterned bowl.
    Air Fryer Carrots and Butternut Squash
  • Root veg mash in a blue patterned serving bowl.
    Root Veg Mash
  • A bowl of carrot and coriander soup with a dark green napkin on the side.
    Carrot and Coriander Soup
  • Sausage, squash and potato bake in a large roasting tin with a jug of onion gravy and bowl of broccoli and green beans on the side.
    Sausage, Squash and Potato Bake
Creamy gratin of smoked haddock, tomatoes and potatoes grey bowl with fork
large crusty bread and chilli cheese scones on wooded board

Category Spotlight...

BREAD

Bread...I don't think I could live without it!! Explore a yummy selection of fresh, homemade bread here. Find easy recipes and baking tips for everything from crusty loaves to soft rolls that you'll enjoy making and eating again and again.

Browse bread recipes

How to make this Creamy Gratin of Smoked Haddock, Tomatoes and Potatoes

Ingredients

  • 500g smoked haddock fillets, skinned
  • 400g tomatoes
  • 700g waxy new potatoes, unpeeled, such as Charlotte
  • salt and freshly ground black pepper
  • leaves from 6 thyme sprigs
  • 500ml double cream (I use Elmlea to reduce the calories!)
  • 1 clove garlic, sliced
  • 1 to 2 tsp English mustard, to taste
  • 40g extra mature cheddar cheese, grated
  • 15g parmesan cheese, grated

Instructions

  1. Preheat the oven to 210C/190C fan/gas 6. Put a metal baking tray in the oven to heat up.
  2. Cut the fish into slices about 4cm thick.
  3. Slice the tomatoes finely. You don’t need to save the juice, so leave whatever runs out on to the chopping board, as the slices shouldn’t be too wet. Scrub then slice the potatoes finely, using a mandolin if you have one. It’s important that the slices are really wafer thin or the potatoes won’t cook through in the time given and you’ll have to cook the gratin for longer, which means the fish will be overcooked.
  4. Layer up half the potatoes and half the tomatoes in a metal gratin dish about 30cm in diameter, or an oval shaped dish or casserole measuring around 36 x 23cm, with a capacity of at least 2 litres, seasoning and sprinkling on the thyme as you do so.
  5. Heat the cream and garlic in a saucepan to boiling, then strain it into a bowl and stir in the mustard, to taste. Pour half of the cream mixture over the vegetables.
  6. Lay the fish on the cream soaked vegetables, then add the rest of the vegetables and pour over the remaining hot cream. Sprinkle both cheeses on top.
  7. Bake in the oven on the hot baking tray for 45 to 50 minutes, or until the potatoes are tender. Remove from the oven and leave to settle for 10 minutes, then serve. It’s delicious with some crusty bread on the side to soak up the creamy sauce!

Serving Suggestions

  • Sauteed kale and green beans in a blue and white bowl
    Sautéed Kale and Green Beans
  • Quick cook carrots in a teal serving bowl.
    Quick Cook Carrots
  • Roast tenderstem broccoli with parmesan and pine nut crumb in a Staub dish with za'atar carrots on the side.
    Roast Tenderstem Broccoli with Parmesan and Pine Nut Crumb
  • Quick cook broccoli in a serving bowl.
    Quick Cook Broccoli
Creamy gratin of smoked haddock, tomatoes and potatoes in oval casserole dish
Speedy gunpowder chicken in grey bowl with yellow napkin

Recipe Collection Spotlight...

13 INDIAN DISHES FOR YOUR NEXT FEAST...

Indian food is one of our favourites to order from a takeaway and to cook.   There's quite a collection of recipes on here and I've pulled out 13 delicious ones for you to choose from for your next feast.

Browse the collection

Did you make this recipe?

I’d love to hear how it went…both good and bad!

Please go to the bottom of the page to rate the recipe and/or leave your comments.

⭐⭐⭐⭐⭐

It would also be great if you could take a photo and tag #FellyBull on social media, thanks.

Subscribe to receive our new and highlighted recipes in your email inbox each week...plus receive our new e-Cookbook for free!!!

✉️

SUBSCRIBE
Creamy gratin of smoked haddock, tomatoes and potatoes grey bowl with fork beside oval casserole dish

Creamy Gratin of Smoked Haddock, Tomatoes and Potatoes

By: Deborah
A delicious full of smoked fish flavour dish, that's very comforting.
PREP: 25 minutes minutes
COOK: 1 hour hour
TOTAL: 1 hour hour 25 minutes minutes
Course: Main
Cuisine: French
Servings: 4 people
PRINT RECIPE PIN RECIPE RATE RECIPE
Prevent your screen from going dark

Equipment

  • Baking tray
  • Deep casserole dish

Ingredients

  • 500 g (1.1 lb) smoked haddock fillets skinned
  • 400 g (2 ¾ cups) tomatoes
  • 700 g (1.5 lb) waxy new potatoes unpeeled, such as Charlotte
  • salt and freshly ground black pepper
  • leaves from 6 thyme sprigs
  • 500 ml (2 ¼ cups) double cream (I use Elmlea to reduce the calories!)
  • 1 clove garlic sliced
  • 1 to 2 tsp English mustard to taste
  • 40 g (⅓ cups) extra mature cheddar cheese grated
  • 15 g (3 tbsp) parmesan cheese grated

Instructions

  • Preheat the oven to 210C/190C fan/gas 6. Put a metal baking tray in the oven to heat up.
  • Cut the fish into slices about 4cm thick.
  • Slice the tomatoes finely. You don’t need to save the juice, so leave whatever runs out on to the chopping board, as the slices shouldn’t be too wet. Scrub then slice the potatoes finely, using a mandolin if you have one. It’s important that the slices are really wafer thin or the potatoes won’t cook through in the time given and you’ll have to cook the gratin for longer, which means the fish will be overcooked.
  • Layer up half the potatoes and half the tomatoes in a metal gratin dish about 30cm in diameter, or an oval shaped dish or casserole measuring around 36 x 23cm, with a capacity of at least 2 litres, seasoning and sprinkling on the thyme as you do so.
  • Heat the cream and garlic in a saucepan to boiling, then strain it into a bowl and stir in the mustard, to taste. Pour half of the cream mixture over the vegetables.
  • Lay the fish on the cream soaked vegetables, then add the rest of the vegetables and pour over the remaining hot cream. Sprinkle both cheeses on top.
  • Bake in the oven on the hot baking tray for 45 to 50 minutes, or until the potatoes are tender. Remove from the oven and leave to settle for 10 minutes, then serve. It’s delicious with some crusty bread on the side to soak up the creamy sauce!

Notes

  • This creamy gratin of smoked haddock, tomatoes and potatoes recipe is easily adapted if you’re cooking for less or more people.

 

You might also like to try:
  • fish dishes

Nutrition

Calories: 774kcal | Carbohydrates: 36g | Protein: 43g | Fat: 52g | Saturated Fat: 32g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 13g | Cholesterol: 251mg | Sodium: 1266mg | Potassium: 1695mg | Fiber: 4g | Sugar: 9g | Vitamin A: 2995IU | Vitamin C: 32mg | Calcium: 294mg | Iron: 4mg

Nutrition information is automatically calculated, so should only be used as an approximation.

KEYWORDS Diana Henry, From the Oven to the Table, gratin recipe, oven baked, smoked fish gratin
Tried this recipe?Please consider Leaving a Review!

More Recipes

  • Classic wholemeal bread made in the Thermomix on a board with 2 slices cut and a small dish of butter with butter knife on the side.
    Classic Wholemeal Bread (Thermomix)
  • Braised pork steaks with mustard cream sauce in a shallow casserole.
    Braised Pork Steaks with Mustard Cream Sauce
  • Roast paprika squash and red onions in a rectangle Staub ovenproof dish with a teal and white check towel.
    Roast Paprika Squash and Red Onions
  • Courgette, potato and leek soup in a black and cream bowl.
    Courgette, Potato and Pea Soup

LEAVE A COMMENT AND RATE THIS RECIPE Cancel reply

Your email address will not be published. Required fields are marked *

Recipe Rating




About

Photo of Deborah in her kitchen!

Hello!   I’m Deborah and I’m married to David and have 2 lovely step sons.   David and I both love cooking…for ourselves, family and friends.   I’m definitely one of the lucky ones…getting cooked for and we enjoy cooking together.

Read more

Felly Bull ebook with remember to subscribe note and green plants
message to subscribe to receive email every week and free ecookbook


MOST POPULAR RECIPES

  • Sea Bass fillet on a blue and white plate with lemony sauce, boiled new potatoes, green beans and courgette
    Easy Sea Bass with Creamy Lemon Sauce
  • Sweet roasted chantenay carrots in small rectangle roasting tin
    Easy Sweet Roasted Chantenay Carrots
  • Cider braised pork steaks with onions in a large round casserole
    Cider Braised Pork Steaks with Onions
  • Creamy salmon, leek and potato traybake in a rectangle roasting tin.
    Creamy Salmon, Leek and Potato Traybake
  • Slow cooker chicken and potato curry in balti dish with rice in background
    Slow Cooker Chicken and Potato Curry
  • Portuguese Water Bread on wooden board with bread knife
    Portuguese Water Bread (Thermomix)
  • Slow cooker korean pulled chicken on a brioche bun with spring onions avocado sesame seeds and chunky chips
    Easy Slow Cooker Korean Pulled Chicken
  • Red lentils and rice in a balti dish.
    Red Lentils and Rice
  • Pork belly slices in BBQ sauce in a brioche bun with salad leaves and coleslaw, with herby garlic butter potato wedges.
    Pork Belly Slices in BBQ Sauce
  • Prawns and garlic garnished with parsley in a terracotta dish, on a board with lemon wedges and crusty bread
    Smoky Garlic King Prawns and Chorizo

Footer

↑ back to top

About

  • Privacy Policy

Subscribe

  • Sign Up! for emails and updates

Contact us

  • email

As an Amazon Associate I earn from qualifying purchases.

Copyright © 2025 FELLY BULL

Rate This Recipe

Your vote:




A rating is required
A name is required
An email is required