How to make delicious onion soup?

I don't think onion soup is delicious with onions. It tastes delicious, but it doesn't have the original spicy feeling of onions, and it has no taste after eating. It's fantastic. Delicious onion soup. Is to stew the beef first Make braised beef soup. Then eat a little. Put it in water.

Add the tomato pieces. It's all cooked.

Finally, put the onion slices. Put some sugar, salt and sesame oil before cooking. This is called Sen Tang. It is delicious.