1， cut beef into small cubes, or you can just use beef cubes.
2, heat a pan, drizzle in oil. Fry beef till slightly golden brown.
3, add in chopped garlic and stir fry till aromatic.
4, add in 1 1/2 tbsp light soy sauce, 1/2 tbsp dark soy sauce, 2 tbsp sugar, 1 tbsp tomato sauce, bayleaves, salt, black pepper and pour into stock covers all ingredients.
5, into high pressure cooker for 15 mins. (cook the pasta at the same time).
6, heat the pan. Cut in 2 tbsp butter. When butter melts, add in 1 1/2 tbsp flour. Quickly mix them.
7, Pour the beef stock into the pan, stir gently. Bring to boil.
8, Add in beef cubes and reduce the sauce.
9, Add in pasta. Season with salt and herbs. Mix everything together and let pasta fully absorb the flavour of beef stock.