Healthy Chocolate Instant pot Steel Cut Oats

/ 176g / 6.2 oz steel cut oats

medium bananas (, don't use large bananas as it will make the mixture too thick for the IP to handle)

cocoa

/ 720 mls / 24 fl oz water ( , or use half milk, half water. Using all milk and no water can cause problems as it thickens the mixture too much. )