• In a wide pan over medium heat, heat oil. Add onions and garlic and cook until softened.
• Add pork and cook until lightly browned.
• Add shrimp and cook, stirring occasionally, until color changes.
• Add fish sauce and cook for another 1 to 2 minutes.
• Add water and continue to cook until pork is tender.
• Add ubod. Lower heat, cover, and cook for about 10 to 15 minutes or until ubod is tender and pork is cooked through.
• Season with salt and pepper to taste. Remove from pan and drain well.

For the Lumpia Sauce

• In a saucepot over medium heat, combine 2 ½ cups of water, soy sauce, brown sugar, and salt. Bring to a boil, stirring regularly, until sugar is dissolved.
• Add garlic and peanuts. Continue to cook for about 2 to 3 minutes.
• In a bowl, combine corn starch and the remaining ¼ cup water. Stir until mixture is smooth.
• Whisking vigorously, add corn starch mixture into soy sauce mixture. Continue to cook, whisking regularly, until thickened.
• Add peanut butter and stir until dissolved and well combined.

For the Lumpia Wrappers

• In a large bowl, combine cornstarch and water. Whisk together until smooth.
• Add eggs, salt, sugar, and oil. Stir to combine until mixture is the consistency of a thin, runny batter.
• Set a 9-inch nonstick pan over low heat. Lightly spray the surface of the pan with nonstick cooking spray.
• Add ¼ cup batter and gently tilt pan on all sides to cover with batter. Cook for about 30 to 40 seconds. When edges of the batter begin to pull from sides and small bubbles begin to form in the middle of the crepe, gently flip to the other side using a spatula. Cook for another 10 seconds or until the top is set.
• Remove crepe from pan by gently sliding onto a plate. Repeat with remaining batter, spraying the pan with nonstick cooking spray in between cooking.

For Assembly

• Lay a wrapper on a flat surface and place a lettuce leaf on top. Spoon about ¼ cup filling across the middle of wrapper and fold sides to cover filling.
• Pour sauce on top of prepared lumpia and garnish with additional minced garlic and ground peanuts, if desired.