Add the corned beef and English mustard to taste and stir through to mix well. Continue to cook over a low heat while you prepare the eggs. Add the remaining olive oil to a separate frying pan.
Corned beef has been a favourite store cupboard staple ... pulse until the mixture resembles breadcrumbs. Lightly whisk the egg with a tablespoon of cold water in a small bowl.
sliced boiled eggs, chorizo and half the mayonnaise slices evenly. Lay the next slice of bread on top, and then lay over the sliced corned beef. Lay the next slice of bread on top and spread over ...