Add the chicken stock, garlic and ginger to the instant pot. Set to saute to start the cooking process.
Add the soy sauce, hoisin sauce, honey, rice vinegar, chili sauce, sesame oil and pepper. Stir thoroughly.
Break the spaghetti in half and layer over the sauce. Push the spaghetti down (it should be just about covered by the liquid).
Add the onion, carrot and chicken. DO NOT STIR! Put the lid on the instant pot and set on high pressure for 4 minutes.
Leave under pressure for a further 4 minutes and then perform a quick release. Remove the lid and tease apart any spaghetti that is stuck together (I used a fork).
Add the cabbage, pepper, mange tout and broccoli. Stir well and put the lid on the instant pot for around 5 minutes to cook the vegetables
Remove the lid and stir thoroughly. Serve and enjoy.