Huevas de Mújol en Salazón

Ingredients

Equipment Needed

• •Digital kitchen scale accurate to 1g
• •Nonreactive container just larger than the roe
• •Rimmed tray and small flat food-safe board
• •1kg weight
• •Wire cooling rack
• •Refrigerator thermometer
• •Very sharp thin-bladed knife

Instructions

1. 1

   Check the roe

   Thaw the roe completely in the refrigerator, never on the counter. The two lobes should remain joined and enclosed in an unbroken membrane, with a clean marine smell and no slime, sourness, or dark soft patches. If the sac is split, salt enters too quickly and the roe cures unevenly; use another one.

   Use roe commercially frozen and sold for raw or cured preparation. Keep it between 2°C and 4°C throughout the process. Salt curing doesn't make spoiled fish sound, and it isn't a dependable parasite treatment by itself.
2. 2

   Clean and weigh

   Rinse the roe briefly under very cold running water. Remove loose membrane or clotted blood from the outside without piercing the sac, then dry it thoroughly with clean kitchen paper. Weigh it and write down the number. For this 300-gram roe, the finished target is 190 to 200 grams.

3. 3

   Pack in salt

   Spread a 2-centimetre layer of coarse salt in a snug nonreactive container. Lay the roe flat without folding it, then cover it completely with the remaining salt, leaving at least 2 centimetres above and around every side. Refrigerate at 2°C to 4°C for exactly 24 hours. Don't press it yet.

4. 4

   Rinse and press

   Lift the roe from the salt and brush it clean. Rinse it for no more than 10 seconds under very cold water, then pat it completely dry. Place it between two sheets of baking parchment on a rimmed tray, cover with a small flat board, and set a 1-kilogram weight evenly on top. Refrigerate for 12 hours. The pressure should flatten the roe gently, not squeeze the eggs through the membrane.

5. 5

   Dry it cold

   Remove the weight and parchment, blot the roe dry, and set it on a clean wire rack over a tray. Leave it uncovered on an upper refrigerator shelf at 2°C to 4°C, protected from drips and raw foods. Turn it once each day and weigh it after the fourth day. It usually needs 5 to 7 days, but the scale decides: stop at 190 to 200 grams, when the surface is dry, the edges are amber, and the thick end feels firm with a slight give.

   If the outside becomes hard while the centre still feels jelly-soft, wrap the roe in parchment for 12 hours so the moisture can even out, then return it to the rack. Never dry it at room temperature or in direct sun in a home kitchen.
6. 6

   Rest the cure

   Wrap the finished roe closely in fresh parchment and place it in a covered container. Refrigerate for 24 hours before cutting. This rest lets the remaining moisture settle evenly through the roe, so a slice bends slightly instead of breaking at the dry edge.

7. 7

   Slice and serve

   Let the hueva stand out of the refrigerator for 10 minutes, then cut across it into slices 1 to 2 millimetres thick with a very sharp knife. Arrange the slices loosely, add a fine thread of olive oil, and serve with the toasted almonds. Taste before adding anything else. The salt and the roe have already done the seasoning.

Chef Tips

• •Striped mullet and flathead grey mullet are common market names for Mugil cephalus, the fish you want. Choose a plump, intact roe sac with an even golden-grey colour. A nick in the membrane gives the salt a doorway and leaves that spot hard before the centre is ready.
• •If a fishmonger cannot confirm that the roe was commercially frozen and is suitable for raw or cured service, buy finished hueva de mújol instead. A home freezer that only reaches about minus 18°C should not be trusted as the parasite-control step.
• •Use plain food-grade coarse sea salt. Fine salt draws moisture too aggressively at the surface, and flavored salts only muddy the clean marine taste. Discard the packing salt after curing; it has absorbed raw fish liquid.
• •Tuna roe can be salted and pressed in the same tradition, but it becomes hueva de atún, darker and more forceful. Ready-cured mullet bottarga is the nearer substitute when raw mullet roe cannot be found, though wax-coated versions must be peeled before slicing.
• •Homemade hueva isn't shelf-stable. Keep it wrapped in parchment inside a covered container at 4°C or colder and eat it within 2 weeks. For longer keeping, wrap it well and freeze it for up to 3 months. Discard it if you find mold, slime, a sour smell, or rancid oiliness.
• •Serve small portions. Ten to fifteen grams per person is enough beside Marcona almonds and bread, with a cold lager or a dry white wine. Thick slabs are not generosity here; they hide the fine texture and make the salt seem harsher.

Advance Preparation

• •Thaw the frozen roe for 18 to 24 hours in the refrigerator before beginning. Keep it covered and set over a tray so it cannot drip onto other food.
• •Allow about 8½ days from salting to serving: 24 hours under salt, 12 hours under gentle pressure, roughly 6 days drying, and a final 24-hour rest.
• •The finished hueva can be refrigerated for up to 2 weeks, so it suits a dinner planned well ahead. Keep the piece whole and slice only what you need; cut surfaces dry and oxidize first.
• •For a longer lead time, freeze the finished whole hueva tightly wrapped for up to 3 months. Thaw it overnight in the refrigerator while still wrapped, then rest it for 10 minutes before slicing.

Frequently Asked Questions

Nutrition Information

1 serving (about 26g)