How to Make Vietnamese Mackerel in Tomato Sauce

September 7, 2024 11 minute read

Mackerel in Tomato Sauce is a delicious and nutritious dish, but if not prepared properly, it can retain the fish's distinctive smell. In this article, Cookbeo will show you how to properly prepare mackerel and cook it without any fishy smell, resulting in firm, flavorful fish that pairs perfectly with rice.

Cá thu sốt cà chua
Mackerel in Tomato Sauce
Servings: 2
Prep Time: 10 minutes
Cook Time: 30 minutes

Ingredients

  • 300g mackerel fillet
  • 3 tomatoes ~ 300g
  • Tomato sauce
  • 3 shallots, 1 piece of ginger
  • Turmeric powder or 1 fresh turmeric root
  • Spring onions, dill
  • 1-2 fresh chilies
  • 100ml fresh tea
  • Seasonings: Fish sauce, oyster sauce, sugar, MSG, seasoning powder, turmeric powder, ground pepper, ketchup
Nguyên liệu làm Cá thu sốt cà chua
Ingredients

Ingredient Notes

To make mackerel in tomato sauce, you can use fresh mackerel or grilled mackerel.

fresh mackerelFresh mackerel

Cookbeo also uses fresh tea to neutralize the fishy smell, but you can replace it with dry tea. If you don't have tea, don’t worry—it won't affect the flavor of the dish too much.

The recipe also uses tomato sauce. This helps thicken the sauce and gives it a nice color and fragrance. If you don't have tomato sauce, you can use extra tomatoes instead.

Additionally, ketchup is used to enhance the color and flavor of the dish.

Instructions

Remove the Fishy Smell from Mackerel

For fresh mackerel, start by removing the fins, gills, and guts, and make sure to scrape off the black membrane from the belly. Then, rub the fish with coarse salt, paying attention to the whole body and belly, and rinse well.

To further reduce the smell, rub the fish with coarse salt or rinse it with ginger wine if available. Rinse again and pat the fish dry.

Avoid soaking the fish too long, as this can strip away nutrients and cause the flesh to lose its color and freshness.

Marinate the Mackerel

Marinating the mackerel also helps reduce the fishy smell. Marinate the fish with:

  • 1 teaspoon seasoning powder
  • 1 teaspoon fish sauce
  • 1/2 teaspoon ground pepper
  • 1/2 teaspoon turmeric powder for color and to reduce odor
Marinating mackerel
Let the fish absorb the flavors for about 10-15 minutes.

Prepare other ingredients:

Wash the tomatoes, dice most of them to make a thick sauce, and cut the rest into wedges to add near the end for freshness and appearance.

Diced and wedged tomatoes

Peel and finely chop shallots. Clean and slice ginger, saving some slices for frying the fish, and mince the rest.

Chopped shallots and minced ginger
Chopped shallots and ginger

Wash and chop spring onions and dill. You can slice the scallion whites into long, thin strips for decoration.

Sliced spring onions and herbs
Spring onions, chili, and dill

Fry the Mackerel

One of the keys to making delicious mackerel in tomato sauce without a fishy smell is frying the fish first, whether it’s fresh or pre-grilled. Frying enhances the flavor and texture of the fish.

Heat some oil in a pan, just enough to lightly fry the fish. Add some sliced ginger for aroma.

When the oil is hot, fry the mackerel until both sides are golden. Avoid overcooking to prevent the fish from drying out.

Frying mackerel
Frying mackerel

Once fried, transfer the fish to a separate plate.

Cook Mackerel in Tomato Sauce

Add 3 tablespoons of cooking oil (from the pan used to fry the fish) to a deep pan or pot, and sauté the shallots and ginger until fragrant. Then add the diced tomatoes and stir well. You can add 1 teaspoon of salt to help the tomatoes soften faster and become more flavorful.

Once the tomatoes are soft, season the sauce with:

  • 2.5 tablespoons tomato sauce
  • 1 tablespoon ketchup
  • 2.5 tablespoons fish sauce
  • 1 tablespoon oyster sauce
  • 1 tablespoon sugar to balance the sourness
  • 100ml green tea
Cooking tomato sauce
Cooking tomato sauce

Stir well, and when the sauce comes to a boil, add the mackerel and spoon the sauce over the fish.

Mackerel in tomato sauce

Cover the pan and continue simmering the mackerel in tomato sauce for about 10 minutes over medium-low heat. During cooking, you can turn the fish to coat all sides in the sauce. If you want a thicker sauce, cook for longer to reduce the liquid.

After about 10 minutes, when the sauce has thickened, add the tomato wedges and adjust the seasoning to taste.

Cook for another 2-3 minutes, then remove the mackerel from the pan.

Tomato sauce with scallions and dill
Garnish with spring onions, dill, and chili, sprinkle with pepper, and briefly stir for 5-6 seconds before turning off the heat.
Mackerel in tomato sauce
Spoon the tomato sauce over the fish.

Final Product Requirements

Mackerel in tomato sauce
Finished mackerel in tomato sauce

This mackerel in tomato sauce is fragrant, with no fishy smell. The sauce is thick, mildly sour, and flavorful. The fish is tender and sweet, perfect with rice. For the best taste, serve the dish hot. If left to cool, the fish may develop a fishy taste, making the dish less appealing.

You can also add pineapple to the dish for a variation of mackerel in tomato-pineapple sauce. Just be careful not to add too much pineapple, as it can make the dish overly sour.

Tips & Notes

  • When cooking mackerel in tomato sauce, leave the lid off to allow the fishy smell to evaporate. Lower the heat so the mackerel softens and the sauce doesn't dry out.
  • Avoid storing mackerel and tomato dishes overnight, as they can become harmful. Be sure to prepare just enough for one meal.

Additional Information

How to Choose Fresh Mackerel

Mackerel is caught at sea and kept on ice before being sold. Therefore, it's important to distinguish between fresh fish, fish that has been stored too long, and spoiled fish. Choosing fresh mackerel impacts both the taste of the dish and the health of those eating it.

Experienced chefs recommend looking for mackerel with a white belly, grayish-green fins, and shiny skin. Additionally, if the gills are bright red, the fish is freshly caught. If the gills are dull red or pale, the fish is no longer fresh.

Also, fresh mackerel has clear, bulging eyes. If the eyes are cloudy or sunken, the fish is not fresh.

When pressing on the flesh, it should be firm and bounce back, a sign of freshness. If the fish is soft, it's likely not fresh.

Fresh mackerel should also have a distinct ocean scent, not a foul odor. If the fish smells like chemicals or oil, it may have been caught in polluted waters and should be avoided.

How to Remove Fishy Smells from Kitchen Utensils

For knives and cutting boards: Use rice water, white vinegar, or regular vinegar to clean knives and cutting boards after preparing fish.

For pots and pans: Use a mixture of baking soda, dish soap, and white vinegar to scrub cookware, or rinse with dry tea leaves before cleaning as usual.

Need more detailed and easy-to-follow instructions? Watch the tutorial video Cá thu sốt cà chua.
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