Slice your potatoes into roast potato sizes. Or if you are using baby potatoes just slice them in half.
Place the potatoes into the Instant Pot, add chicken stock, salt and pepper.
Place the frozen chicken breasts on top and pour the 200ml of water over them.
Place the lid on the Instant Pot, set the valve to sealing and cook for 10 minutes on manual pressure.
When it beeps manually release pressure.
Remove the chicken breast, place on a chopping board and slice it.
In the Instant Pot reduce the stock by 75% using a ladle and putting it to one side.
Add in the soft cheese and place the Instant Pot on sauté. Using a wooden spoon stir until it starts to thicken. Add in white wine, milk, cheddar cheese, frozen sweetcorn and the rest of your seasoning.
Add in the sliced chicken and serve.