Saffron walnut loz is a soft Persian sweet made from finely ground walnuts and fragrant syrup. Once the warm mixture is pressed into a shallow tray and chilled, it is cut into the diamond shapes that give loz its name. Rose water, cardamom and saffron keep the rich walnut flavour from feeling heavy.
What is walnut loz?
Loz is also transliterated as luz, which is why the earlier English version of this recipe called the sweet “luz walnuts.” It is not a cake and does not need baking. The mixture sets because concentrated sugar syrup binds the ground nuts as it cools.
Walnut loz keeps well compared with many cream-filled sweets, but freshness still matters. Walnuts contain natural oils that can develop a stale or bitter flavour. Taste one before grinding the batch and use nuts that smell clean and sweet rather than paint-like or musty.
Ingredients
- 1 cup shelled walnuts
- 2 cups granulated sugar
- About ½ cup water, plus a little more only if needed
- 2 tablespoons rose water, or to taste
- 1 dessertspoon ground cardamom (about 2 teaspoons)
- 1 tablespoon strongly brewed saffron water
- Edible dried rose-petal powder, for decoration
- 1 tablespoon liquid glucose, optional
The original ingredient list gave water and rose water “as needed.” Starting with ½ cup water and two tablespoons rose water makes that instruction practical without forcing all the liquid into the pan. Syrup behaviour changes with pan width, heat and humidity, so keep a spoonful of hot water nearby for a mixture that tightens too quickly.
Prepare the tray and flavourings
- Line a small shallow tray or container with baking parchment. Leave enough paper at the sides to lift the set sweet out later.
- Dust the base lightly with edible rose-petal powder. A thin layer is enough; a heavy coating can taste papery.
- Grind the cardamom seeds if you are starting from whole pods. Sieve out coarse husk fragments.
- Brew the saffron and set it beside the stove.
Parchment is easier to handle than loose plastic film around hot syrup. If you use food-safe cellophane as in the old method, let the mixture cool slightly before it touches the lining and follow the material’s heat limit.
Grind the walnuts finely
Pulse the walnuts in a clean grinder or food processor until they resemble a fine meal. Stop and scrape the bowl often. Running the machine continuously can release too much oil and turn the nuts into walnut butter.
For the smoothest loz, pass the meal through a sieve and grind the larger pieces again. Do not discard a few tiny flecks—the sweet should still taste like walnut—but remove hard shell fragments.
Make the saffron syrup
- Put the sugar, ½ cup water, rose water, brewed saffron and cardamom in a small heavy saucepan. Add the optional tablespoon of liquid glucose now if using.
- Warm over medium heat, stirring gently only until the sugar dissolves.
- Once it boils, reduce the heat. Let the syrup bubble steadily without aggressive stirring until it thickens and falls from a spoon in a slow, slightly elastic thread.
- Remove it from the heat before it colours. Saffron should give the syrup its warm tint; caramelisation will make the walnut loz darker and can add bitterness.
Liquid glucose is optional. It can reduce graininess and make the paste a little more cohesive, but it is not a substitute for reaching the correct syrup consistency.
Mix the walnut paste
While the syrup is still hot, add the ground walnuts in two or three portions. Stir quickly and continuously with a firm spatula. At first the mixture will look loose; it should gather into a soft paste as the nuts absorb the syrup.
Stop when the paste pulls together and a cooled pinch no longer sticks heavily to your fingers. Be careful when testing: sugar syrup causes serious burns, so place a tiny amount on a cool saucer and wait before touching it.
Press, chill and cut
- Transfer the warm paste to the prepared tray. Cover it with a second sheet of parchment and press evenly with the base of a glass or a small rolling pin.
- Aim for an even slab about 1.5–2 cm thick. Remove the top paper and smooth any cracks while the mixture remains pliable.
- Refrigerate for 5–6 hours, as in the original method, until firm enough to cut neatly.
- Lift out the slab. Wet and wipe a sharp knife, then make diagonal cuts in one direction and crossing diagonal cuts in the other to form rhombus-shaped pieces.
- Dust lightly with more rose powder or top each diamond with a small walnut piece.
Troubleshooting walnut loz
- Paste is sticky and will not set: the syrup may have been too thin. Return the mixture to very low heat and stir briefly, then press it again.
- Paste is dry or cracks: knead in a teaspoon of warm rose water or water. Add only a few drops at a time.
- Sweet is grainy: sugar crystals may have formed on the pan sides. Dissolve the sugar fully at the start and avoid stirring once the syrup boils.
- Oil appears on the surface: the walnuts were probably processed too long or the paste became too hot. Blot lightly and handle the next batch with shorter grinder pulses.
- Flavour is bitter: check the walnuts before use and do not brown the syrup or overheat saffron.
A no-cook powdered-sugar variation
The previous recipe also offered a shortcut without syrup. Replace the granulated sugar with finely sifted powdered sugar, mix it thoroughly with the walnut meal, then add rose water or water by teaspoons until a mouldable paste forms. Press, cover and cut it in the same way.
This version is softer and lacks the cooked syrup’s clean structure, so use as little liquid as possible. Although the old directions suggested leaving it in open air, an airtight container protects the walnut flavour better and prevents the surface from drying unevenly.
Storage
Layer the diamonds between parchment in a sealed container. Keep them in a cool, dry place for short-term serving or refrigerate for longer freshness. Let chilled loz stand briefly before eating so its texture softens and the cardamom, rose and saffron aromas open up.
