Yes, pork knuckles can be stewed in a regular pot to make them tender. Here is a common way to do it:

1. Ingredients: pork elbow, ginger, green onion, cooking wine, soy sauce, sugar, salt, star anise, sesame leaves, water.

2. Directions:

- Wash the pork elbow and make a few cuts on the surface to facilitate the flavor.

- Put the pork elbow into a pot, add enough water, add appropriate amount of cooking wine, boil and blanch to remove blood and dirt. Fish out and rinse and set aside.

- Add water to the pot, add pork elbow, ginger, green onion, star anise, sesame leaves and other seasonings.

- Bring the water to a boil, turn down the heat, cover the pot and cook slowly for about 2-3 hours until the pork knuckles become tender and easy to cut.

- At the last stage of stewing, add appropriate amount of seasonings such as soy sauce, sugar and salt to flavor the pork knuckles.

- The braising time may vary depending on the size and texture of the elbows, so you can adjust the time appropriately as needed. You can use chopsticks or a fork to easily penetrate the pork knuckle to test if it has become tender.

It is important to note that braising pork knuckles takes a longer time to ensure that the meat is well-cooked. If the time is insufficient, the pork knuckles may remain tough. In addition, the heat should be moderate when stewing so as not to overcook the meat and cause it to be too rotten and mushy.