Prik the tip of the pork, so that the pork equally thick. Season and fry the tenderloins on both sides brown. Lower the heat and add some water. Let it simmer for a minute or 7. Heat in a small pan some oil, add 1 finely sliced red onion, 1 finely chopped garlic clove and thyme to taste. When the onion is soft, add 1 canned diced tomatoes, 1/2 cube vegetable stock and 1 tablespoon sugar. Now let it simmer on a low heat for a minute or 5. Serve tenderloin with tomato sauce with fresh spaghetti! Enjoy!