Break up the Quorn sausages and place them into a food processor with the egg yolk, blend until smooth. Add 100g of the breadcrumbs and continue to blend until all the crumbs are incorporated in to the mixture, refrigerate for 30 minutes
Place 2 eggs into a small pan, add boiling water from the kettle, bring to the boil, reduce the heat to medium and cook for 4 ½ minutes. Cook for a minute longer for a firmer egg or if you would like to eat it cold. Remove from the heat and run under cold water until cool then gently peel off the shell
Divide the sausage mixture into four equal amounts. Place a square of cling film on the work surface, flatten out sausage mix on top of the cling film into a circular shape, use a little flour if the mixture is too sticky. Place egg in middle of sausage and using the cling film fold around forming the sausage mixture around egg
Now dip in to the beaten egg and coat in the remaining breadcrumbs. Bake on a non stick baking tray and bake for 20 minutes
Serve warm (or refrigerate for later) with a fresh watercress salad.