Read the following text and answer the question!

PERFECT BRAISED BEEF BURGER

Ingredients:

• 1 pack or 12 burger buns
• 1/3 pound chuck roast, rinsed and dried
• 2 medium onions, chopped
• 1 tbsp olive oil
• 2 tomato
• barbecue sauce
• salt
• freshly ground black pepper

Steps

• Put olive oil in a pot. Then heat it on medium heat.
• Cook the onions for about 5 minutes. Then, add the tomato and barbecue sauce while increasing the heat to medium high and cook for 10 minutes.
• Next, add the chuck roast and cook until the meat is very tender, for about 3 hours. Stir occasionally.
• Transfer the meat from the pot to a plate. Then, shred the toast into small pieces with a knife and a fork.
• Set the heat on medium-high until the liquid becomes thicker. Uncover the pot. Don't forget to stir it to prevent burning.
• Put the meat back into the pan. Warm it thoroughly. Add salt and pepper to taste. Serve on buns.

The text above tells you about ____