It's coffee blitzed in the blender - or NutriBullet - with, for me, a large tsp of proper, good quality grass-fed butter and another of pure coconut oil.. I suppose you could use a hand blender, or a whisk too... It comes out like a creamy latte or cappuccino... some use more and some less of the fats.. sometimes I put a dash of cream in too..

I use espresso with a little hot water, but I like it strong... I do the same with cacao - add some Stevia, dash of cream and sometimes a spoonful of peanut butter, water, off the boil, and it's lush..... It came from a chap who watched the sherpas in Nepal go all day on a can of tea - they whisk it up with fermented yak's milk and butter of course - they can last all day, climbing in freezing conditions, on it..

So this chap developed a more palatable and easy way for us to nourish ourselves... we'd find it hard without a yak in the backyard I imagine... But you actually don't feel hungry, so when you're on the run, it's really good - I put mine in a small flask if I'm really rushing around...