Find a heatproof glass bowl that will fit neatly on top without touching the water and add the yolks, vinegar and 1 teaspoon of lemon ... If you want to use this recipe for Eggs benedict or ...
Season with salt and pepper before adding 1 teaspoon of cream to the avocado half. Crack an egg into the half. Top with a quarter of the tomato, cheese and spring onion and a pinch of chilli flakes.