Preheat oven to 220°C | 200°C fan | 425°F | Gas 7
Grease a baking sheet and dust with a little flour.
Measure the flour and psyllium husk powder if using and sieve onto a plate.
Add the butter to a medium saucepan and cook on a high heat until melted.
Pour in the hot water and bring back to the boil
Take off the stove and immediately thrown in your flour, this goes against your instincts and you think you'll get a lumpy mess, be brave and beat the mixture giving it everything you've got!
Put the porridge-looking mess to one side and allow to cool for 5-10mins. It needs to be hand warm before the next stage.
Add the beaten eggs one tablespoon at a time and beat furiously to combine. Once all the egg has been added you should have a smooth but sticky choux batter that refuses to leave the wooden spoon if flicked!
Spoon the batter into a piping bag with a large round nozzle, pipe walnut sized blobs onto a prepared baking tray leaving about 5cm between each.
I always smooth down any little sticky-up bits by dipping my finger in a cup of cold water and gently patting down any spikes, these will just burn if you leave them sticking up.
If using a fan oven you may get better results, like me, if you add a roasting tin with a mug of water poured into it in the bottom of the oven, the steam should aid the baking process.
Pop your profiteroles into the oven for 20mins they will go a lovely golden colour and double in size.
Remove from oven and transfer to a cooling rack to cool completely.