Start by pounding the pork chops to tenderize them. Then slice into bite-sized strips.
In a bowl, mix the pork strips with ginger, white pepper, salt, sugar, and beer. Let it marinate for 20 minutes while you prepare the batter.
In another bowl, combine the cornstarch, flour, and baking powder. Slowly add water until you get a batter that is runny but thick enough to coat the meat. Add the oil to help prevent sticking.
Add the marinated pork to the batter and mix well so each piece is fully coated.
Heat your oil to 325°F or 160°C. Drop in the pork one piece at a time. Don’t touch them for the first two minutes. This helps the coating set properly. Then carefully separate each piece, or do it later in a plate.
After 3 to 4 minutes total, when the pork starts to float and turns pale golden, take them out and place on a plate or wire rack.
Now raise the oil temperature to 375°F or 190°C. Fry the pork again for 90 seconds until golden and crispy.
In a bowl, mix ketchup, water, sugar, and rice vinegar. Add the cornstarch slurry.
Heat 1 tablespoon of oil in a pan or wok. Give the sauce a quick stir again, then pour it in. Stir and let it come to a bubble until it slightly thickens.
Add the crispy pork strips to the sauce. Toss quickly so everything is well coated.Sprinkle with sesame seeds, and serve right away for the best crunch.