Step 1

Whisk together the kecap manis, lime juice, fish sauce, sugar and sambal oelek in a small jug.

Step 2

Heat the oil in a wok or large frying pan over high heat until just smoking. Add the mince and stir-fry for 5 minutes or until the mince changes colour. Add the lemon grass and stir-fry for 1-2 minutes or until aromatic.

Step 3

Add the kecap manis mixture to the wok and stir-fry for 3-4 minutes or until heated through.Divide the lettuce leaves among serving dishes. Spoon the mince mixture evenly among the lettuce leaves. Top with the mint and bean sprouts to serve.