Melt butter in saucepan
Pour melted butter into a small jug to allow it to separate and cool (5 minutes)
Boil a small pot of water on the stove
In a separate bowl, add together the egg yolks, vinegar and water and whisk
Place the bowl on top of the boiling water and continue whisking. The steam will cause the eggs to pasteurise and thicken the sauce.
Continue whisking the egg mixture until thick and hot to the touch.
Once the mixture is hot, remove the bowl from the heat and set aside.
Grab the jug of butter and start pouring the oil in to the bowl you’ve set aside, whisking whilst pouring. Pour the butter in gradually.
Tip: If the sauce looks like it’s about to separate or “split” grab an ice cube and whisk it into the mix – it’ll cool it down and save the sauce.
Lay out your asparagus on your serving plates and pour over the hollandaise sauce quickly.
Serve immediately – and eat before the sauce splits!