Preparation Sprinkle gelatin over cold water in a small heavy saucepan and let soften 1 minute. Cook over low heat, 1 to 2 minutes, then remove from heat. Coarsely mash avocados with a fork in a large bowl. Stir in gelatin mixture along with remaining ingredients until combined well. Pour mixture into lightly oiled mold and chill, covered tightly with plastic wrap, until firm, at least 4 hours. Run tip of a thin knife between mold and mousse. Tilt mold sideways and tap side of mold against a work surface, turning it, to evenly break seal and loosen mousse. Keeping mold tilted, invert a plate over mold, then invert mousse onto plate. Cooks' note:Mousse can be chilled in mold up to 1 day. Unmold just before serving.
Preparation Sprinkle gelatin over cold water in a small heavy saucepan and let soften 1 minute. Cook over low heat, 1 to 2 minutes, then remove from heat. Coarsely mash avocados with a fork in a large bowl. Stir in gelatin mixture along with remaining ingredients until combined well. Pour mixture into lightly oiled mold and chill, covered tightly with plastic wrap, until firm, at least 4 hours. Run tip of a thin knife between mold and mousse. Tilt mold sideways and tap side of mold against a work surface, turning it, to evenly break seal and loosen mousse. Keeping mold tilted, invert a plate over mold, then invert mousse onto plate. Cooks' note:Mousse can be chilled in mold up to 1 day. Unmold just before serving.