Creamy lemon sorbet
Lemon with a touch of dairy that takes off the harshness without taking off the edge. Fresh, but rounder than a sorbet.
The zest and the juice do different things: the peel holds the essential oil, which is the smell of lemon; the juice holds the acid. That is why they go in separately and at different moments.
Ingredients
For 1 kgTick each ingredient as you get it ready.
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Step by step
9 steps · follow the order for the best result
Chef's notes
- ·Lemon sugar with the solids · juice cold, with the mix already at 4 °C.
- ·Do not skip the cold ageing: it hydrates proteins and stabiliser and clearly improves the texture.
- ·The serving temperature depends on your recipe: if you formulate to a softer PAC than your freezer (say -11 °C with the chest at -18 °C), temper it for 5–10 min before serving; if the PAC matches your freezer, it can be eaten straight out.
- ·Why formulate at -11 and not at -18 °C: even though your freezer sits at -18 °C, formulating at -11 makes the ice cream tastes better — at -18 it is so cold that the taste buds barely pick up the flavour and the fat is slow to melt in the mouth. And keeps better: ice cream formulated at -11 and kept at -18 has less free water, suffers less from Ostwald ripening (ice crystals joining and growing) and keeps its creaminess longer.
- ·Keep your own notes: write down the POD and PAC that work best with your machine.
The texture
spot on
Fresh and sharp, but without the pure sorbet's edge: the touch of cream softens the lemon's acidity just enough that you want a second spoonful. It stays light and cleans the palate.
All about this lemon semi-sorbet
This is a sherbet: it carries a little cream and milk powder, just enough to gain a touch of fat and take the edge off the lemon without turning it into an ice cream.
There are two versions, "sharp" and "milder", and the difference lies in the balance between juice and sugar. The sharp one is loaded with juice, and raises the sweetness to offset that acidity.
The lemon sugar is made beforehand: zest taken off with a peeler, with none of the white pith, ground in the processor with the sucrose. It goes in with the solids and perfumes the whole mixture; the juice, by contrast, is added with the mix already at 4 °C, because acid in the heat brings nothing good.
The ingredients and what each does
The fruit brings the flavour. A little cream and milk powder rounds out the texture without turning it into ice cream: fat stays under two per cent. Sucrose and dextrose set the sweetness and the hardness at serving temperature. Glucose adds body and barely sweetens. Inulin adds solids with almost no sweetness, the job milk would do in an ice cream. The stabiliser holds the free water and stops crystals forming in the freezer. Water adjusts the concentration so the flavour is neither watery nor pasty.
Technique and controlling the numbers
Adjusting the POD (sweetening power) and the PAC (antifreezing power, given as a target temperature) lets you match sweetness and hardness to your taste and your machine. With the selectors in the side bar the formula recalculates itself and you will see how the amount of each ingredient changes.
Storage and common mistakes
Store at -18 °C in an airtight container and avoid freeze-thaw cycles. The commonest faults are not ageing it enough, too much sugar so it never freezes properly, and over-churning, which whips in too much air and wrecks the texture.
Recommended for this recipe
Equipment and ingredients that make the difference.
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