Cut the kimchi into bite-sized pieces.
Slice the Spam into thick pieces.
Place the kimchi at the bottom of a pot and layer the Spam on top.
Slice the onion and green onion.
Add water, sugar, red pepper powder, soy sauce, and minced garlic.
Bring to a boil over high heat.
Reduce to medium-low heat and simmer until the kimchi and Spam are tender.