Spicy grilled squid (grilled calamari: 오징어통구이)

Ingredients (serves 4):

• 1 large squid (about 1 ½ pounds)
• 2 cloves garlic cloves, minced
• ½  teaspoon minced ginger
• 3 tablespoons hot pepper paste (gochujang)
• 3 tablespoons rice syrup or corn syrup
• 1 teaspoon mustard
• 1 teaspoon soy sauce
• 1-2 teaspoons sesame oil
• 1 teaspoon sesame seeds
• 2 green onions, chopped
• salt for cleaning the squid
• vegetable oil

https://www.youtube.com/watch?v=LFlzbfnmsas