Halva Ice Cream with a Tahini Swirl

Halva is one of those sweets that divides a room in the best way. To some it is a chalky, too-sweet slab from the corner of a deli counter; to others it is the taste of a grandparent’s kitchen, dense and shatter-soft and impossibly moreish. I fall firmly in the second camp, and this ice cream is my argument for the defence. It takes everything I love about sesame halva, its toasted-tahini depth and faint bitterness, and folds it into a cold, creamy base that mellows the sweetness and lets the sesame sing. The swirl of salted tahini caramel running through it is the small twist that turns a nice ice cream into one people ask for by name.

What halva actually is

The word travels a long way. Halva (or halawa, or helva) comes from the Arabic root for “sweet”, and it names a whole galaxy of confections across the Middle East, the Balkans, North Africa, the Caucasus and South Asia. There are two broad families: the flour-based halvas, cooked from semolina or wheat starch with butter and syrup, common in Greece, Turkey and India; and the nut-butter halvas, made by binding tahini with a boiled sugar or honey syrup until it sets into that characteristic flaky, layered crumb. The tinned or block halva you find in delis, the kind you want here, is the sesame sort.

Its texture is a quiet piece of food science. When hot syrup is worked into tahini and pulled, sugar crystals grow along the fibres of the paste and organise it into fine, hair-like layers, which is why good halva breaks in soft flakes rather than snapping like fudge. That same crumbliness is what makes it fold so beautifully into ice cream: it never freezes rock hard, instead staying pleasantly chewy against the smooth base. Sesame is deeply woven into the sweets of the region, and if you enjoy that flavour you will find it echoing in a cup of Turkish Coffee with Cardamom or the warm, milky comfort of Sahlab: Warm Orchid Milk with Cinnamon.

Why no-churn works here

I make this without an ice cream machine, and for once that is the better method rather than a compromise. The classic no-churn base, whipped double cream folded into sweetened condensed milk, works because the whipped cream traps air and the sugars and fat in the condensed milk depress the freezing point, so the mixture stays scoopable straight from the freezer without churning. A custard-and-machine version would give a denser, more elegant scoop, but it would also mute the halva, whose soft crumb wants a lighter, airier vehicle to sit against.

Tahini is the ingredient that makes the base taste of something. I build it in twice: whisked into the condensed milk for an all-over sesame hum, and rippled through as a salted caramel for concentrated pockets of bitterness. The salt matters more than you would think. Sesame paste is high in fat and naturally a little bitter, and a proper pinch of flaky salt sharpens both the caramel and the whole dessert, keeping the condensed-milk sweetness from turning cloying. If you like that salted-caramel register, this is a cousin of my Banoffee Pie with Salted Caramel, traded from the pantry into the freezer.

Choosing and storing your halva

Not all halva is equal, and the tub you buy will shape the finished ice cream. Look for a bar or block where the ingredient list starts with sesame (or tahini) and sugar or glucose, ideally with a whisper of vanilla; avoid anything padded out with hydrogenated fats or a long tail of stabilisers, which tastes waxy and coats the mouth. Plain sesame halva is the one to reach for here, so its clean nuttiness carries the base, though a marbled chocolate halva works too if you want a darker result. Pistachio halva is a treat but the nuts can turn slightly soft in the freezer, so chop them small if you use it.

Store the block wrapped tightly at cool room temperature rather than in the fridge, where the cold dries it out and makes it crumble to dust. When you come to use it, break it into rough, irregular pieces with your fingers rather than chopping it into neat cubes, because those ragged edges melt into the base at their thin points and stay chewy at their thick ones, which is exactly the contrast you want in each spoonful.

Making it well

Stir your tahini before you measure it. A tin of tahini separates in the cupboard, with a slick of oil floating over a stiff paste at the bottom, and if you scoop from the top you get grease and from the bottom you get cement. Beat the whole jar back together first; a butter knife and a minute of patience does it.

Whip the cream only to soft peaks. This is the commonest mistake with no-churn ice cream: taken too far, the cream stiffens and then splits toward butter, and the finished ice cream turns grainy and greasy. You want peaks that flop over when you lift the whisk, still glossy. Fold in the condensed-milk mixture gently and in stages so you keep the air you have just beaten in, because that air is what makes the scoop soft.

Layering is how you get a proper marble rather than a muddy brown tub. Spoon in a third of the base, drizzle swirl, scatter halva, and repeat, then drag a skewer through in a few slow figure-of-eights. Over-mixing at this stage folds the caramel evenly into the base and you lose the ribbons entirely, so a light hand wins. Press cling film directly onto the surface before freezing to stop ice crystals forming on top.

Tips, storage and troubleshooting

If your swirl freezes bullet-hard, it had too little honey or syrup; the sugar and the small amount of water keep it soft in the freezer, so a caramel that is mostly tahini will set solid. Loosen the next batch with more honey or a splash of warm water. If the ice cream is icy rather than creamy, the cream was underwhipped or the base was overworked and lost its air.

Kept well wrapped, it holds its texture for around two weeks; after that it starts to pick up freezer smells and coarsen. Always give it five minutes on the counter before scooping, since a very cold sesame base is firmer than a plain vanilla one thanks to all that fat. A warm spoon, dipped in hot water and wiped, cuts clean scoops.

Variations

Chocolate and tahini are old friends, so a handful of chopped dark chocolate folded in with the halva makes a more decadent version. A scrape of orange zest into the base brings a Levantine brightness. For a nuttier crunch, toast the sesame seeds properly until they are golden and popping before scattering them on, or fold through a few roughly chopped, roasted pistachios. A spoon of thick coffee whisked into the condensed milk turns it into a sesame affogato in a tub, wonderful with a shot of espresso poured over at the table.

Serve it in small scoops, because it is rich, with an extra thread of tahini caramel over the top and a little more flaky salt. It is the kind of pudding that makes people stop mid-conversation to ask what the flavour is, and then to ask, slightly suspiciously, whether it really has no machine and no cooking behind it. It does not. It just has good sesame, treated with respect.