Preheat oven to 200 degrees. Put a splash of oil in a stove top and oven safe pan. Fry the onion, garlic and chorizo until onion is translucent. (If you don’t have an oven/stove safe pan, use a frying pan and transfer fried ingredients to small baking dish.) Add tomatoes, water and sugar, bring to boil. Reduce heat and simmer for 15 minutes. Take off heat (if using a baking dish, pour liquid in now). Sprinkle herbs over the tomato and chorizo sauce. Lightly crack eggs on the top of the sauce, in the centre of the dish. Bake until egg whites are cooked through. Garnish with more herbs and serve with crusty bread.