In a small bowl, mix salmon, celery and minced green onion. Add mayonnaise, lemon juice, salt, pepper and liquid smoke. Mix well. Cover and chill at least 1 hour to develop flavor or up to 24 hours.
Just before serving, place a cucumber slice on crackers or toast. Top with salmon mixture and garnish with green onion slices and watercress.
This Salmon Canapes recipe is from the All-Occasion Appetizers Cookbook. Download this Cookbook today.