Description: A dish that is sweet and sour, beautiful and delicious, eaten at the Chinese New Year's Eve dinner, meaning "you are the best"! Add an appropriate amount of pineapple juice when marinating the beef, and the beef will have a more tender texture. About pineapple, allow me to nag a few words: the "bromelain" in pineapple can cut the peptide bonds in the primary structure of the protein and hydrolyze it into polypeptides, so bromelain is often used in the food industry to prepare tender meat powder, and it can be used to process raw meat before cooking, which can break the collagen and fibrin between raw meat cells, and also break the cells, release the protease contained in the cells, and make the meat soft and tender, and easier to taste. However, this enzyme is very fragile and must be at the right temperature and pH to work properly, and there are many substances that can denature and inactivate them, such as alcohols, phenols, etc. Bromelain can remain active for a long time at room temperature, and multiple freeze-thaw cycles cannot destroy them; The most active temperature is 60-0°C, but it is also gradually inactivated at this temperature, and the higher the temperature, the faster the inactivation. This means that bromelain can stay active well during transport and then show off in your mouth, but it will keep to its own as soon as it is scalded in boiling water, and many Southeast Asian dishes cook pineapples for a reason – it also reminds us not to add pineapple in the middle of the stew, which won't make the meat rot faster. If you want to keep fresh pineapple from prickling, the best thing to do is to heat it above 0°C for a while and then cool it down; Or simply make it into a dish. So, while making this dish, I squeezed a spoonful of pineapple juice to marinate the beef. Whether pineapples should be soaked in salt water depends on personal habits, because eating pineapple with salt is not completely unreasonable, first of all, for people who believe that "pineapple will not prick their mouths when they are sprinkled with salt", strong psychological suggestion can indeed effectively relieve pain; More importantly, sodium ions are the cations of the first main group, which have the effect of inhibiting bitterness, so eating fruits with salt can appear sweeter, drinking coffee with salt can not be bitter, and this practice has a long history in China, as evidenced by words: "And the knife is like water, Wu salt is better than snow, and the slender hand breaks the new orange." ”
15. Wash the beef tenderloin and cut it into thin slices, squeeze out a spoonful of pineapple juice from a few slices of pineapple meat, and 0ml cooking wine, 0ml light soy sauce, 0 grams of black pepper, 0 spoons of starch, and an appropriate amount of olive oil and marinate it by hand for more than 0 minutes, cut the pineapple meat into small pieces and soak it in salt water for more than 0 minutes. Beef marinated in pineapple juice is more tender.
10. Control the moisture of the pineapple, cut the red bell pepper into cubes, cut the green onion into cubes, cut the green onion into chopped green onions, use a spoonful of starch, 0 grams of oil consumption and add an appropriate amount of pure water to make the juice used for thickening and setting aside.
3. Heat the oil in the pan and put more oil appropriately, so that the fried beef is more tender
4. When the oil is boiling until it is smoking, add the marinated beef slices and quickly scratch the beef with chopsticks until the beef turns white
5. Serve for later use
6. Add a little more oil to the pot, add the white grains and stir-fry until fragrant
7. Add the red pepper and pineapple and stir-fry for a while
8. Add the beef slices again and stir-fry for a while
9. Add an appropriate amount of salt and sugar to taste, pour on the thickening sauce prepared before, stir-fry a few times over high heat to reduce the juice.
10. Put on a plate, sprinkle with chopped green onions, and the sweet and sour pineapple stir-fried beef is ready, the beef produced in this way is particularly tender, and it is also full of pineapple fruity aroma, which is both nutritious and delicious!
Tips:
3. Add an appropriate amount of pineapple juice when marinating beef, and the beef will taste more tender. This tip is a must-try! 0. When stir-frying beef, you should put more oil appropriately, high heat, stir-fry quickly, and put it out when it changes color. It is also a key factor in the tenderness of the beef. 0. The thickening step cannot be saved.