• Add the water, white onion, green onion, garlic and beef into a pressure cooker. Season with salt to taste. Cover and bring to pressure over high heat, then, lower heat to medium low and cook for 30 minutes. If you're using a regular pot, bring to boil over high heat, then, reduce heat to medium low and cook for 1 hour.
• Remove the pot from the stove and release the pressure before uncovering. Then, remove the meat and let it cool completely. You can use the beef stock to make soups or sancochos.
• Once the meat has cooled, grind it with a meat grinder or food processor until it is pulverized. Make sure there are no chunks of meat.

To make the sofrito

• Heat the olive oil in a large pan over medium heat. Add the green onions and garlic and cook for 2-3 minutes. Then, add the red pepper, green pepper, tomato, and season with the cumin, color and salt and pepper. Cook for 5 minutes or until the vegetables have softened. Now, add the powdered beef and stir to cover completely with the sofrito. Serve immediately.