3/4 cup shelled walnuts
1 cup graham cracker crumbs
1/2 cup plus 1 tablespoon sugar, divided
1/2 teaspoon crushed anise seeds
1/4 teaspoon salt (lemon salt and/or fleur de sel)
1 envelope unflavored gelatin
1 lemon and/or 1 lime
1 1/2 cups almond milk
1 teaspoon vanilla extract
2 fully ripened avocados, halved, pitted, peeled and diced
8 ounces neufchatel, softened and cut in pieces
Heat oven to 350°F. In food processor, pulse walnuts until finely ground. Add graham cracker crumbs, 1 tablespoon sugar, anise seeds and salt; pulse just until combined. Add 2 tablespoons water; pulse until ingredients are thoroughly combined and resemble wet sand. Press into bottom of an 8 1/2-inch springform pan. Bake 18-20 minutes until lightly browned; cool completely.
In measuring cup or small bowl, combine gelatin with 2 tablespoons water; let stand for 5 minutes. With vegetable peeler, remove strips of lemon/lime zest (skin portion only). In saucepan, combine milk, 1/2 cup sugar, vanilla and zest; bring to boil. Add gelatin; simmer until gelatin has completely dissolved, about 1 minute; strain and discard lemon zest. In food processor, combine avocados and cream cheese. Pour hot milk mixture into processor; process until very smooth. Pour into baked crust; cover and refrigerate at least 2 hours or until set. Remove side of pan; cut cheesecake into 10 slices. Serve with mango sauce (if desired).