MethodStage 1Put the tomatoes, onio

Method
Stage 1
Put the tomatoes, onion, garlic, ginger, chilli (left whole), lemon grass, coriander, peppercorns, sugar, salt, lemon juice and just 50ml of water into a saucepan. Cover tightly and cook over a low heat for 30 minutes.
Stage 2
Strain, pressing the juice but not rubbing any of the solids through the sieve. Rinse the pan and mix the remaining 150ml water with the Vege-Gel, whisking together.
Stage 3
Whisk in the strained tomato liquid, then keep whisking over a moderate heat until the mixture comes to the boil.
Stage 4
Pour into a large mould (about 500ml) or 4 individual ones. Cool and then chill for at least 3 hours. Dip the mould briefly in hot water before turning out to serve.