1 Chicken

I don't have ready access to all the traditional Korean ingredients so I don't generally use them, but for those that can, I've included the Korean ingredients in italics.

Chicken Marinade
2 tbsp Sake or Cheong Ju
1 tbsp Soy Sauce
1 tbsp Olive Oil
1 tbsp Sugar
1 tbsp Honey or Mul Yut
Fresh Ground Black Pepper

Sauce
3 tbsp Kochukaru (Korean Chili Powder)
1 tbsp Kochujan
2 tbsp Soy Sauce
1 tbsp Sesame Oil
2 tbsp Honey or Mul Yut
1 tbsp White Sugar
2 tsp Karashi Mustard (or other hot mustard)
Hot Chillies (to taste)
3 cloves Garlic
1/2 large Onion (peeled and cut into chunks)
1/2 large Nashi Pear (peeled and cut into chunks)