Ingredients:
300 grams (0.66 lb) beef tenderloin
75 grams (0.165 lb) canned pineapple
1 egg white
2 grams (1/3 tsp) salt
30 grams (2 tbsp) water
10 grams (1 1/2 tbsp) dry cornstarch
10 grams (2 tsp) mixture of cornstarch and water
5 grams (1 tsp) cooking wine
100 grmas (7 tbsp) cooking oil
5 grams (1 tsp) mashed garlic

Directions:
1. Cut the beef into slices 6 cm (2.4 inches) long, 3 cm (1.2 inches) wide and 0.3 cm (0.12 inch) thick. Add 1 g (1/6 tsp) of salt, dry cornstarch and egg white, and mix well.

2. Cut the pineapple into slices of a size similar to that of the beef.

3. Heat the oil to 110-135ºC (230-275ºF) and stir-fry the beef slices until they are done. Take out and drain off the oil.