Preheat the oven to 230°C (450°F/Gas 8). In a bowl, mix together the cubes of stale bread with the other ingredients. Spread them out on a baking tray and bake for about 10 minutes until they are golden brown. You can also cook them in a frying pan. This is a good method if you want to make small batches, say for 3–4 servings of salad. In this case, after mixing the ingredients, fry the croutons over medium heat, tossing and stirring them for 5–10 minutes until they are evenly browned.