Using your food processor, process chicken hearts and sea quest into thick paste; if there is chunks, no problems!
Heat cooking oil, saute your garlic, then add in fish sauce plus the ground black pepper; stir well.
Pour the beef broth, add in "crab" paste, stir well.
Pour in 2 cans of water, stir to boil.
Add in corn peel and another 2 cans of water, stir to boil again.
Add in the rest of the ingredients to your taste.
Lastly sprinkle the green onion and zest in the lemon (juice), stir well.
Serve in bowl.