Preheat the oven to 180°C, 350°F, Gas 4. Put a frying pan on a medium-low heat, add the olive oil then add the skinned, chopped tomatoes, see my tip, above left. Season with a good pinch of salt and cook for about 15 minutes, until the tomato sauce is thick and viscous.
Remove from the heat, stir in the chopped parsley and the crushed chilli peppers. Divide the tomato sauce between four ovenproof ramekins and break 2 eggs into each dish. Place a slice of the chorizo on top of each egg and divide the grated manchego or Parmesan cheese, whichever you’re using, between the ramekins.
Place in the preheated oven and bake for 10-15 minutes, until the whites are set, but the yolks are just ever so slightly soft. Just before the eggs are ready, toast the slices of bread and butter them.
Remove the eggs from the oven and serve with the buttered toast.