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Place the 200 grams of potato starch into a bowl. Add enough water to cover the starch and soak it until it is fully dissolved. This will take about 10-15 minutes.

Cut the 400 grams of pork tenderloin into even, thin slices, approximately 1/4-inch thick.

Rinse the pork slices twice with cold water, then firmly squeeze out as much moisture as possible from the pork using your hands or paper towels.

Add a pinch of salt to the pork slices and mix well by hand to ensure even seasoning.

Drain any excess water from the soaked potato starch, leaving a thick paste. Add this potato starch paste to the pork and mix thoroughly by hand, ensuring each slice of pork is completely coated.

Finally, add a small amount of cooking oil to the coated pork and mix by hand. This helps to seal in moisture and prevent sticking during frying.

In a separate bowl, combine the 60 grams of granulated sugar, 30 grams of vinegar, 10 grams of light soy sauce, 2 grams of salt, and 15 grams of water. Stir well until the sugar and salt are dissolved. Set the sauce aside.

Heat a generous amount of cooking oil in a wok or deep pot over medium-high heat until it reaches approximately 160°C (320°F), or when a wooden chopstick inserted into the oil shows small bubbles around it. This is about 60% hot.

Carefully place the pork slices into the hot oil one by one, ensuring not to overcrowd the wok. Fry the pork slices until they are set and lightly golden, about 2-3 minutes. Remove them from the oil using a slotted spoon and set aside.

Increase the oil temperature to approximately 180°C (350°F). Return the partially fried pork slices to the hotter oil for a second fry. This double frying technique ensures maximum crispiness.

Continue to fry until the pork is golden brown and very crispy, about 2-4 minutes. Remove the pork from the oil and drain on a wire rack or paper towels.

Pour out most of the oil from the wok, leaving a small amount. Heat the wok over medium-high heat and add the sliced garlic. Sauté for about 30 seconds until fragrant.

Pour in the prepared sauce from Step 7. Simmer the sauce on high heat, stirring continuously, until it thickens slightly, about 1-2 minutes.

Add the double-fried pork, shredded carrot, scallion strips, and cilantro to the wok with the thickened sauce.

Quickly toss all the ingredients over high heat for about 30 seconds to 1 minute, ensuring the pork and vegetables are evenly coated with the sweet and sour sauce.

Serve immediately and enjoy the sweet, sour, and crispy Guo Bao Rou!


Place the 200 grams of potato starch into a bowl. Add enough water to cover the starch and soak it until it is fully dissolved. This will take about 10-15 minutes.

Cut the 400 grams of pork tenderloin into even, thin slices, approximately 1/4-inch thick.

Rinse the pork slices twice with cold water, then firmly squeeze out as much moisture as possible from the pork using your hands or paper towels.

Add a pinch of salt to the pork slices and mix well by hand to ensure even seasoning.

Drain any excess water from the soaked potato starch, leaving a thick paste. Add this potato starch paste to the pork and mix thoroughly by hand, ensuring each slice of pork is completely coated.

Finally, add a small amount of cooking oil to the coated pork and mix by hand. This helps to seal in moisture and prevent sticking during frying.

In a separate bowl, combine the 60 grams of granulated sugar, 30 grams of vinegar, 10 grams of light soy sauce, 2 grams of salt, and 15 grams of water. Stir well until the sugar and salt are dissolved. Set the sauce aside.

Heat a generous amount of cooking oil in a wok or deep pot over medium-high heat until it reaches approximately 160°C (320°F), or when a wooden chopstick inserted into the oil shows small bubbles around it. This is about 60% hot.

Carefully place the pork slices into the hot oil one by one, ensuring not to overcrowd the wok. Fry the pork slices until they are set and lightly golden, about 2-3 minutes. Remove them from the oil using a slotted spoon and set aside.

Increase the oil temperature to approximately 180°C (350°F). Return the partially fried pork slices to the hotter oil for a second fry. This double frying technique ensures maximum crispiness.

Continue to fry until the pork is golden brown and very crispy, about 2-4 minutes. Remove the pork from the oil and drain on a wire rack or paper towels.

Pour out most of the oil from the wok, leaving a small amount. Heat the wok over medium-high heat and add the sliced garlic. Sauté for about 30 seconds until fragrant.

Pour in the prepared sauce from Step 7. Simmer the sauce on high heat, stirring continuously, until it thickens slightly, about 1-2 minutes.

Add the double-fried pork, shredded carrot, scallion strips, and cilantro to the wok with the thickened sauce.

Quickly toss all the ingredients over high heat for about 30 seconds to 1 minute, ensuring the pork and vegetables are evenly coated with the sweet and sour sauce.

Serve immediately and enjoy the sweet, sour, and crispy Guo Bao Rou!
