Heavily salt then broil the liver on both sides until brown and firm. Rinse the salt off and pulse the liver in a food processor until it looks like ground beef.
In a large bowl, combine the ground liver, ground beef, minced garlic, cumin, pepper, salt, matzah meal and 2 tbsp olive oil. Mix by hand.
Form 2-inch diameter meatballs or shape into 3-inch long sausages.
In a saucepan, bring the water, paprika and 1 tbsp olive oil to a boil.
Reduce to medium heat and carefully place the meatballs (or sausages) into the liquid. Cover and cook for 10-15 minutes.
Remove from heat and let sit for 5-10 minutes. Serve warm or cold.