This vegan satay sweet ... tomato purée, soy sauce, peanut butter, coconut milk and 200ml/7fl oz boiling water. Whisk while bringing to the boil and then add the sweet potato chunks.

But for the sake of convenience, creamy peanut butter is your best bet. For the most basic recipe ... sauce for chicken satay and fresh spring rolls, is delicious tossed to coat rice noodles ...