If using meat, see note 1 below. Otherwise, add 2 cups of water to a pot along with the red chili pepper paste and soybean paste. Stir well to dissolve. Bring it to a boil.
Drop the potatoes in and bring it to a boil again. Continue to boil for a minute or two. Then add the zucchini, clam meat (unless using meat), garlic, chili peppers and scallions.