This is a basic Instant Pot Mushrooms recipe. This means you can use it as a base for however you prefer your Instant Pot Mushrooms. Or you could just serve them as a side dish for your lunch or dinner. For vegetable stock I mixed one OXO vegetable stock cube with 250ml of water (just over 1 cup). But you could use any vegetable stock.For the best chicken & mushroom stock in your recipes I would recommend Kettle & Fire. Unfortunately they are not available in the UK so if you are UK based I would use OXO cubes.