Why you should make your own salt blends
A good salt blend does more than add salt to fish — it seasons the flesh itself, carries other flavors into the meat, and builds complexity that a single pinch of table salt cannot. When you make your own, you control what goes in, you know exactly how salty it is, and you can adjust it to match what you caught and how you plan to cook it.
Store-bought blends often contain anti-caking agents, sugar, or fillers that muddy the taste of delicate fish. Making your own takes ten minutes and costs less than a single packet. A jar of homemade blend lasts through dozens of meals and tastes better every time you use it.
Key Takeaways
- Salt blends work best when you use kosher salt or sea salt as the base, because their larger crystals let you control seasoning more precisely than table salt.
- A basic ratio is three parts salt to one part dried herbs or spices, adjusted by taste and the type of fish you are cooking.
- Citrus zest, smoked salt, and ground spices add depth without overpowering delicate white fish or oily fish like mackerel.
- Store finished blends in airtight jars away from heat and light, and they will keep for several months.
The foundation: choosing your salt
Kosher salt is the best choice for a seasoning blend. Its larger crystals dissolve slowly and evenly, so you can taste as you go and adjust without over-salting. It also has no additives — just salt. Diamond Crystal and Morton's are the two common brands; Diamond Crystal is slightly less dense, so if you measure by volume, use a little more of it.
Sea salt works equally well and adds a subtle mineral note. Use fine sea salt rather than fleur de sel or other finishing salts, which are expensive and wasted in a blend. Avoid table salt, which contains anti-caking agents that make blends clumpy and taste metallic.
If you want a smokier flavor, smoked salt can replace up to half the base salt. It pairs well with oily fish like salmon, mackerel, and bluefish. Start with a quarter of your salt as smoked and taste before adding more.
Building a basic blend: herbs and spices
Start with a ratio of three parts salt to one part dried herbs or spices by volume. This gives you enough seasoning to taste without overwhelming the fish. Adjust upward if you like bold flavor, downward if you prefer subtlety.
For white fish (cod, halibut, flounder, snapper), use dried herbs that are delicate and bright: dill, tarragon, chervil, or a mix of parsley and thyme. Grind them finely so they distribute evenly through the salt. A pinch of garlic powder adds depth without harshness.
For oily fish (salmon, mackerel, bluefish, trout), use stronger flavors that stand up to the richness: fennel seed, coriander seed, black pepper, or a combination. Smoked paprika works well here. Toast whole seeds lightly in a dry pan before grinding — this wakes up their flavor and makes them more aromatic.
For mild fish (tilapia, catfish, perch), keep the blend simple: salt, a small amount of dried onion, and one herb like oregano or basil. These fish benefit from seasoning that enhances rather than competes.
Citrus and brightness without acid
Dried citrus zest adds brightness to a salt blend without the liquid that would make it clump. Zest a lemon, lime, or orange with a microplane, spread it on a plate, and let it dry at room temperature for two to three days. Grind it finely and mix it into your blend at a ratio of one part zest to four parts salt.
Lemon zest works with almost any fish. Lime zest is excellent with mild white fish and ceviche-style preparations. Orange zest pairs well with salmon and richer fish. You can also combine zests — lemon and lime together, or lemon with a small amount of grapefruit.
If you do not have time to dry zest, buy freeze-dried citrus powder from a spice supplier. It is more concentrated, so use half as much by volume.
Blends for specific fish and cooking methods
| Fish Type | Blend Base | Ratio & Notes |
|---|---|---|
| Salmon (grilled or roasted) | Kosher salt, smoked salt, fennel seed, black pepper, dried dill | 3 parts salt, 1 part fennel, 1/2 part pepper, 1/2 part dill. Toast fennel first. |
| Cod or halibut (pan-seared) | Sea salt, dried tarragon, lemon zest, garlic powder | 3 parts salt, 1/2 part tarragon, 1/2 part lemon zest, 1/4 part garlic powder. |
| Mackerel or bluefish (any method) | Kosher salt, smoked salt, coriander seed, black pepper, paprika | 2 parts salt, 1 part smoked salt, 1/2 part coriander, 1/2 part pepper, 1/4 part paprika. |
| Trout (whole, grilled) | Sea salt, dried thyme, black pepper, fennel pollen | 3 parts salt, 1/2 part thyme, 1/4 part pepper, 1/8 part fennel pollen (optional but worth it). |
| Catfish or tilapia (fried) | Kosher salt, dried oregano, garlic powder, cayenne | 3 parts salt, 1/2 part oregano, 1/4 part garlic, pinch of cayenne. Adjust cayenne to taste. |
Making and storing your blend
Measure your salt and dried ingredients into a small bowl. If using whole seeds or spices, grind them in a spice grinder or mortar and pestle until they are broken into small pieces — not powder, but not whole either. Mix everything together thoroughly.
Spread the blend on a clean plate and let it sit uncovered for a few hours. This allows any moisture from the herbs to evaporate and prevents clumping. If it still feels damp, spread it on a baking sheet and warm it in a 200°F oven for five to ten minutes, then cool completely before storing.
Transfer to an airtight glass jar — a small mason jar works perfectly. Label it with the blend name and the date. Store away from heat, light, and moisture. A blend will keep for three to four months, though the herbs will gradually fade in flavor. Make a fresh batch when the aroma becomes faint.
Using your blend at the stove
For a whole fish, sprinkle the blend inside the cavity and on both sides about ten minutes before cooking. This gives the salt time to begin dissolving and seasoning the flesh. For fillets, season just before cooking — the thinner the fillet, the less time you need.
Start with less than you think you need. You can always add more, but you cannot take salt out. A teaspoon of blend seasons a single large fillet or a small whole fish. Taste a bite of cooked fish before deciding whether to increase the amount next time.
If you are making a sauce or butter to serve alongside the fish, reduce the salt in the blend slightly, since the sauce will add more salt. If you are grilling or smoking, use a slightly heavier hand — some seasoning will fall away in the heat.
Frequently Asked Questions
Can I use fresh herbs instead of dried?
Fresh herbs contain too much water and will make the blend clump and spoil quickly. Dry your own by hanging bundles upside down in a warm, dark place for one to two weeks, or use a dehydrator. Once completely dry, strip the leaves from the stems and grind them finely before mixing with salt.
What if my blend gets clumpy?
Clumping usually means moisture got in. Spread the blend on a baking sheet and warm it gently in a 200°F oven for five to ten minutes, then cool and store in a fresh, completely dry jar. Add a few grains of uncooked rice to the jar to absorb any future moisture.
How much salt blend should I use per fish?
A teaspoon seasons one large fillet or a whole fish weighing one to two pounds. For smaller fillets, use half a teaspoon. For a large whole fish over three pounds, use one and a half teaspoons. Adjust based on how salty you like your food and how much other seasoning is in your recipe.
Can I make a blend without salt?
You can make a dry herb and spice blend without salt and add salt separately at the stove, but it will not distribute as evenly or stick to the fish as well. If you need to reduce sodium, use half the salt and increase the herbs and spices slightly to keep the flavor strong.
Do I need special equipment to make a blend?
A spice grinder or coffee grinder works best for grinding seeds and dried herbs, but a mortar and pestle does the job fine and gives you more control. A small bowl, a spoon, and an airtight jar are all you need otherwise.