Avocado Mousse
["1 envelope unflavored gelatin", "3 Tbsp. fresh lemon juice", "1 heaping c. pureed avocado", "1/2 c. sour cream", "1/2 c. mayonnaise", "1/4 tsp. salt", "1/8 tsp. pepper", "dash of cayenne", "1/4 tsp. onion salt", "1/4 tsp. dried dill weed", "1 c. cooked small shrimp (optional)"]
["Lightly oil a 1 1/2-quart ring mold.", "In a large bowl, soften the gelatin in 1/4 cup cold water.", "Add 1 cup boiling water and the lemon juice to the gelatin mixture.", "Chill until slightly thickened."]
["unflavored gelatin", "lemon juice", "avocado", "sour cream", "mayonnaise", "salt", "pepper", "cayenne", "onion salt", "dill weed", "shrimp"]