1 pound (450g) Korean cylinder-shaped rice cakes (tteok)
1 small onion, chopped
2 cloves garlic, minced
2 tablespoons oil
4 slices bacon, chopped
1 cup whole milk
1/2 cup grated Parmesan cheese
1/2 cup mozzarella cheese
Salt and pepper to taste
Fresh cilantro leaves for garnish