Mustard Sauce Recipe, prepare Fish with Mustard Sauce

Today I’m showing you my mustard sauce recipe and because it is such a good theme to combine, I’ve made the recipe Fish in Mustard Sauce, mashed potatoes and capers.

It’s a poached redfish fillet with mashed potatoes and mustard sauce. The warm mustard sauce goes well with cooked seafood like cod, redfish, sole, plaice and salmon – as well as freshwater fish like pikeperch, trout, perch and carp.

You can fry or poach your fish, even freshly smoked fish goes well with warm mustard sauce.

I’ll show you the warm mustard sauce with fish in two + one variations. Both sauces work in less than 15 minutes.

In addition, I have added a quick recipe for cold mustard sauce: Keywords are Graved Salmon (Gravlax), Ikea Mustard Sauce, Smoked Salmon… So you can react flexible to the situation and wish you good success and a lot of fun cooking by yourself.

1. Mustard Sauce Recipe (warm), the Gourmet Variant

First of all I would like to show you the warm mustard sauce in the premium version…

  • Sweat two shallots diced with butter (50 g), pimento (one grain) and bay leaf (one piece) for about five minutes until translucent.
  • Deglaze with 50 ml white wine and bring to the boil with 150 ml vegetable broth.
  • For binding, stir into the cold cream (150 ml) with 1 tsp corn starch and then slowly pour the cream into the boiling broth.
  • Season the sauce with 1-2 tsp Dijon mustard, 3 pinches of salt, 2 pinches of pepper, 1 pinch of cayenne pepper and 2 pinches of nutmeg.
  • Mix for the taste the mustard sauce with a little sugar (2 pinches) and mix the sauce with cold butter (15 g) until foamy – dill, chervil, parsley and capers go well with this.

Voila, wonderful, the wonderful mustard sauce works so fast, it goes very well with boiled beef and fish by the way!

To keep it exciting, I have added two additional secret ingredients to the recipe below, which make your taste buds ring :-)So it’s worth reading!

Mustard sauce for fish, my sauce will be foamed on the plate. This fish dish is wonderful. Add tomato cubes to the dish, mine were unfortunately plastered at short notice by my mother and couldn’t find their way to the plate. © Thomas Sixt Foodfotograf

2. Mustard Sauce Recipe (warm), the quick Variation

If you have to go really fast, here is the recipe mustard sauce for the fast kitchen…

  • Add 150 ml of cold water with 1 teaspoon vegetable stock and 1 teaspoon starch to a saucepan, mix and bring to the boil.
  • Add 150 ml cream to the boiling sauce, season with 1-2 teaspoons Dijon mustard, 3 pinches salt, 2 pinches pepper, 1 pinch cayenne pepper and 2 pinches nutmeg and approx.
  • Add 3 pinches sugar and mix with cold butter (15 g) until foamy. Capers, parsley, dill and chervil go well with this sauce.

Adjust the strength of the bond to your taste. You can either boil the sauce down or add a little more cornflour.

Please be careful, the sauce does not bind until it is cooked. This means: add cornflour, bring to the boil, check binding, add more cornflour to taste.

Important: Always mix cornflour with cold liquid, then add to warm liquid. You can also stir cold and bring to the boil. The sauce doesn’t clot!

3. Cold Mustard Sauce Recipe

In order to complete the article and the flow of information towards your kitchen, here is a short version of the recipe for the cold mustard sauce:

  • mix 2 tbsp. Dijon mustard with 1 tbsp. honey, 1 tsp. dill and taste the sauce with salt, pepper and lemon juice.
  • you can add crème fraîche to this cold mustard sauce or a little Mayo!

Many of us know this sauce with Graved Salmon and Smoked Salmon. It simply succeeds and tastes delicious!

Cold mustard sauce with Dijon mustard, honey, lemon juice and dill. If the Dijon mustard is too hot for you, use a medium hot mustard.

4. Recipe Fish in Mustard Sauce with Mashed Potatoes and Capers

Here step by step with many photos the instructions for the dish. Please use the comment function to send us your questions!

Print Recipe
5 from 14 votes
5 from 14 votes
Rose Fish with Mustard Sauce, Mashed Potatoes, Capers and Dill
Fish with mustard sauce shows you professional chef Thomas Sixt with this recipe. Try this dish with different types of fish like salmon, cod, halibut, plaice, saithe, monkfish, perch, as well as pike-perch, trout and carp. In the article you'll find two variations for warm and one variation of the popular cold mustard sauce as a dip for smoked salmon and Gravad salmon.
Prep Time15 mins
Cook Time20 mins
Total Time35 mins
Course: Fish and Seafood Recipes
Cuisine: French Recipes, German Recipes
Keyword: Glutenfreie Rezepte
Servings: 2 Portiones
Calories: 1084kcal
Author: Thomas Sixt
Mashed Potatoes Ingredients
  • 300 g potatoes I use floury potatoes
  • 500 ml vegetable broth
  • 4 pinches salt I use Himalayan salt or primal salt
  • 4 pinches pepper
  • 4 pinches nutmeg
  • 100 ml cream
  • 40 g Butter
Mustard Sauce Ingredients
  • 1-2 pck shalotts
  • 1 pck Piment
  • 1 pc bay leaf
  • 50 g Butter
  • 1 tbsp Noilly Prat Dry vermouth
  • 50 ml white wine
  • 150 ml vegetable broth
  • 1 tsp corn starch
  • 150 ml cream
  • 1 pinches Lemon abrasion
  • 2-3 tsp Dijon-mustard
  • 3 pinches salt I use Himalayan salt or primal salt
  • 2 pinches pepper
  • 1 pinches cayenne pepper
  • 3 pinches sugar I use brown sugar!
  • 2 pinches nutmeg
  • 50 g Butter I use cold butter to froth up!
Fish Ingredients
  • 300 g rose fish fillet or other fish fillets without skin
  • 6 pinches salt I use Himalayan salt or primal salt
  • 6 pinches pepper
Decoration and Additions
  • 1-2 tsp capers
  • 1/4 bunch Dill
Mashed Potatoes
  • Peel the potatoes, cut into slices and cook covered with broth until soft. For later serving, keep the plates warm in the oven. You can also heat the plates in a microwave.
  • Drain the potatoes and season with salt, pepper and nutmeg. Add the cream and butter and quickly mix with a hand mixer to a creamy puree.
Mustard Sauce
  • Peel and finely dice the shallots and sauté in the butter for 5 minutes in a colourless pan with allspice and bay leaf. Deglaze with Noilly Prat and white wine, add the vegetable stock and bring to the boil. Mix cold cream with cornflour and slowly pour into the boiling broth. The sauce binds when boiling. Flavour the mustard sauce with mustard and the remaining spices and keep warm for serving.
  • Wash rose fish ocean perch fish fillets under running cold water. Check fillets for existing bones and cut them out generously with a knife. Cut fish fillets into portions.
  • Bring the mustard sauce to the boil, remove from the heat and place the fish fillets next to each other in the sauce and poach for 3-5 minutes. Heat the mashed potatoes, season to taste again and arrange on a warm plate in the middle. Remove the fish fillets from the sauce with a skimmer and place them on top of the mashed potatoes.
  • Mix the mustard sauce with a hand blender and pour into the dish. Serve decorated with dill and capers.

5. Calories Fish with Mustard Sauce and mashed Potatoes

Nutrition Facts
Rose Fish with Mustard Sauce, Mashed Potatoes, Capers and Dill
Amount Per Serving
Calories 1084 Calories from Fat 774
% Daily Value*
Fat 86g132%
Saturated Fat 48g300%
Polyunsaturated Fat 6g
Monounsaturated Fat 24g
Cholesterol 362mg121%
Sodium 3029mg132%
Potassium 1340mg38%
Carbohydrates 39g13%
Fiber 4g17%
Sugar 4g4%
Protein 42g84%
* Percent Daily Values are based on a 2000 calorie diet.

6. Other matching Recipes

Fry fish: Recipe Fried Rose Fish Filet with Potato Salad
How to get Halibut with Potato Puree and Peas
Recipe Redfish in Tomato Stock "Mediterranean"
Recipe Redfish with White Wine Sauce, Spinach and Potatoes
Fish in Tomato Sauce with cooking Video
Codfish in Chanterelles Stock Recipe with Cooking Video
All Fish Recipes by Kochprofi Thomas Sixt
Potato Puree

Leave a Reply

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

Recipe Rating

Author: Thomas Sixt

Hi, I am a German Chef, Cookbook Author and Food Photographer. The imparting of cooking knowledge is my great passion. Everyone can cook for himself and with this website I would like to contribute to its success. Let yourself be inspired and enjoy good food. If you have any cooking questions, please use the comment function at the end of each article and recipe. I wish Thomas Sixt Good Luck!