1.- Peel and finely chop the garlic, and if you have included chorizo/longaniza, cut it into thin slices. And the day-old bread is torn into large pieces.
2. Fry the garlic in a saucepan with hot oil. It's IMPORTANT that it's golden brown but not burnt, or you could ruin the dish.
3. If you've added chorizo/longaniza, fry it with the garlic until it releases some of its juices.
4. Add the bread to the saucepan and stir well so it absorbs the flavor of the oil. Cook for 2-3 minutes.
5. Sprinkle with paprika and stir well. Then add the stock, approximately 1 liter. Bring it to a boil and cook for 10-15 minutes.
6. Add the egg. For a more substantial version, crack an egg into the saucepan when the soup is boiling and let it cook for 2-3 minutes until the white is cooked and the yolk is set. intact.
7.- Adjust the salt and pepper to your taste, then serve and enjoy the soup.