Lumpia is a Filipino-style spring roll filled with beef, pork, and vegetables rolled in a thin crepe wrapper. You can find these wrappers at specialty Filipino stores; they are thinner than a traditional spring roll wrapper resulting in a crispier texture. If you can't find Filipino-style wrappers, you could use regular spring or egg roll wrappers, but the end result will be a little different in appearance and texture. —Amelia Rampe
Combine garlic, onion, carrots, scallion, cabbage, salt, pepper, 1 egg and 1 egg yolk in a large bowl and mix until well blended. Add beef, pork, salt, and pepper and using your hands mix until everything is evenly distributed.
In a small bowl, whisk a splash of water into remaining egg white. Working one at a time, place lumpia wrapper on a work surface with 1 corner facing you. Place 1 heaping tablespoon of filling in center of wrapper and shape into a thin horizontal 5-inch long log. Dip your fingers in remaining egg white mixture and lightly brush edges of wrapper. Roll bottom corner up and snugly over filling, then tuck under filling. Fold left and right corners tightly over filling to enclose, use your fingers to crease the wrapper, then continue to roll bundle away from you. Both sides should be as close to sealed as possible; use a little egg wash to seal, as necessary.
In a large nonstick pan, fill bottom of pan until oil comes up 1 inch. Oil should cover lumpia at least halfway when frying; adjust amount if needed. Heat pan over medium-high heat. You’ll know oil is hot enough if you place the tip of lumpia into oil and it bubbles immediately. Cook lumpia, until deep golden brown and crisp, 2 to 3 minutes per side. Remove to a wire rack lined with paper towels. You can serve whole or cut in half. Serve with Vinegar-Soy Dipping Sauce or sweet chili sauce.
Vinegar-Soy Dipping Sauce
Stir all ingredients together and decant into a small dish.