Place oyster, soy and sweet chilli sauces in a bowl with the stock and extra teaspoon of cornflour. Stir to combine, then set aside.
Step 2
Soak noodles in boiling water for 10 minutes. Meanwhile, combine five-spice and remaining cornflour, add chicken and toss to coat. Place 1 tablespoon of oil in a wok over high heat, add chicken and cook until golden. Drain on paper towel.
Step 3
Add remaining oil to wok and stir-fry capsicums for 1-2 minutes. Add the shallots, garlic, ginger, snow peas and mushrooms and stir-fry for 1 minute. Return chicken to pan, add sauce mixture and cook for 1 minute until thickened.
Step 4
Toss in half the nuts. Drain noodles and divide between bowls. Top with stir-fry and remaining nuts.