BBQ Tri-Tip Steak

1-inch piece fresh ginger (peeled, finely chopped)

garlic

all-fruit plum jam (or preferred jam)

reduced-sodium soy sauce

sesame oil

water

bunch green onions (sliced)

medium serrano chiles (cut in half, seeds removed, chopped)

sea salt (or Himalayan salt) and ground black pepper (to taste; optional)

raw tri-tip roast