Add 1 tbsp sesame oil to a wok, place on a high heat
Once hot add the chilli and ginger and fry for a few minutes before adding the garlic and tofu
In a small bowl, stir together the soy sauce, mirin, sugar, squeeze of 1/2 lime and remaining sesame oil then add to the wok
Add the udon noodles to a pot of boiling water and simmer for five minutes
Toss the wok allowing each side of the tofu to cook then add in the thinly sliced radish and leeks, 1/2 the sesame seeds then add in the cooked noodles with a splash of the water from the pot, and fry together on a high heat for the final 2-3 minutes
Garnish with 1/4 lime, a sprinkle of sesame seeds. We recommend serving with chilli crisp oil