Cut pork and liver into 1“ cubes and place in stock pot with water to cover. Add thyme sprig, celery, red pepper onion, 2 tsp salt, and cracked pepper. Bring to boil over high heat. Reduce and simmer for 75 or until meat is tender and falls apart. Use slotted spoon, transfer meat to plate. Reserve at least 1/4 cup of the fattiest liquid and discard rest. Let it cool.
Using coarse grinder, grind pork and liver into a large bowl
Add rice, chives, thyme, garlic powder, onion powder, remainign salt, hot pepper flakes, and ground black pepper, cayenne, paprika, and oregano to the ground meat
Mix until distributed. Add reserved liquid and mix until it has a thick custard like paste consistency
Fry up and taste it
Stuff into casings hot