Remove meat from both sides of fish spine but don’t cut off tail. Score inside of fish crosswise at 1” intervals, but do not cut through skin. Slash lengthwise twice, marinate with crushed ginger, green onion, salt, and wine for 20 minutes.
Cook pine seeds in 1 cup boiling water with 2 tablespoons sugar for 1 minute, then remove to bowl and soak for ½ hour, dra