Steps
1. Put pork fat in a frying pan over low heat to extract oil. Set aside. Fry camote in fat extract. Set aside.
2. Saute garlic and onion. Add shrimps, shrimp juice and pre-cooked pork. Season with patis. Simmer for 3 mn. and add soybean. Boil for 12 mn.
3. Add turnips, cabbage and pre-cooked camote. Cook for 3 mn
4. Add celery and sprinkle half of the peanuts. Cook for another minute.
5. Wrap 2-3 tbsp of the mixture with lumpia wrapper together with lettuce leaves, sprinkling the mixture with the remaining peanuts.
6. Prepare the sauce caramelizing sugar over low heat in a sauce pan. Put all ingredients in the pan and cook until thick. Stir constantly to prevent burning.

Source
Philippine Council for Agriculture, Forestry and Natural Resources Research and Development, LANTICAN, Cecilia (ED)(1996), Great Flavor of Soybean, (Book Series No.155/1996), ISBN 971-20-0424-4, PCARRD-TAPI, Los Ba?os, Laguna