Step 1

MAKE MARINADE: Use a food processor, immersion blender or nothing. Place all ingredients in a food processor (or bowl). Process (or blend with immersion blender) until smooth. If you don't have a processor or blender, grate the pear and onion, then mix with the remaining ingredients.

Step 2

MARINATE SHORT RIBS: Pour marinade into large zipper lock bag along with boneless beef short ribs. Remove air and seal bag. Squish meat around to ensure meat is well covered with marinade. Place in fridge for 24 -48 hours (or 6 hours if taking a shortcut).

Step 3

SOUS VIDE SHORT RIBS (see Note 3 for non-sous vide option). Heat water with sous vide equipment to 135F/57C. Lower bag of short ribs into water. Bag should float under water. If it doesn't, unseal bag, lower it until top of bag is just above water line, then reseal it once all air is pressed out by water. If using a circulator sous vide, cover pot with lid or towel to reduce evaporation. Sous vide ribs for 12-30 hours. I find 24 hours perfect or, if ribs are very thin, 12 hours. (For a shortcut, sous vide for 6 hours - but not as tender). Remove shorts rib from bag. Pat dry with paper towel.

Step 4

MAKE GLAZE/SAUCE (optional but recommended): Pour marinade juices into small pot (I like to pour it through a sieve to remove small bits but it's fine if you don't). Bring to boil, then reduce to medium high. Boil for about 10 minutes until reduce by half and slightly thickened.

Step 5

GRILL KOREAN SHORT RIBS: Spray grill with oil and heat to medium high (450-500F). Brush glaze on both sides of short ribs. Spray ribs with oil on one side to avoid sticking. Grill for 2 minutes on one side that is sprayed with oil. No need to grill the other side. Brush on extra glaze and serve with remaining sauce on the side. Garnish with chopped green onions and/or sesame seeds if desired.