Make Ahead Guacamole
["1 envelope gelatin", "1/4 c. cold water", "1/2 c. boiling water", "1 Tbsp. lemon juice", "1 1/2 c. mashed ripe avocado", "1/3 c. mayonnaise", "3/4 tsp. salt", "2 Tbsp. finely minced onion", "1 small ripe tomato, seeded and diced (1/3 c.)"]
["Sprinkle gelatin over cold water and let stand 5 minutes.", "Add 1/2 cup boiling water and stir until dissolved.", "Whisk in lemon juice, mashed avocado, mayonnaise and salt.", "Stir in minced onion and tomato.", "Turn into 3 cup mold or bowl.\tMake in a.m. and serve in p.m. and it will not darken."]
["gelatin", "cold water", "boiling water", "lemon juice", "mashed ripe avocado", "mayonnaise", "salt", "onion", "tomato"]