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["Line a metal loaf pan (approximately 9x5x3"") with 2 layers of plastic wrap, leaving generous overhang on all sides.", "Grind pistachios and 2 tablespoons sugar in a food processor until very finely chopped. Transfer pistachio mixture to a small sauce- pan. Add 1/2 cup milk; bring to a boil. Remove from heat, cover, and let steep for 20 minutes. Set a fine-mesh strainer over a medium bowl; strain, discarding solids. Stir in almond extract; set pistachio mixture aside.", "Place remaining 1/2 cup milk in a separate small saucepan. Scrape in seeds from vanilla bean; add bean and bring to a simmer. Re- move from heat, cover, and let steep for 15 minutes. Set a strainer over another medium bowl; strain, discarding solids, and chill vanilla mixture.", "Puree strawberries and 2 tablespoons sugar in a food processor until smooth. Set a fine-mesh strainer over another medium bowl; strain, pressing on solids to extract as much juice as possible. Discard solids. Stir in vanilla extract and set strawberry mixture aside.", "Whisk eggs, salt, and remaining 1/2 cup sugar in a medium metal bowl. Set bowl over a medium saucepan of simmering water (do not allow bottom of bowl to touch water). Beat egg mixture at high speed until it triples in volume and an instant-read thermometer inserted into mixture registers 170u00b0F, about 3 minutes. Remove bowl from over water and continue beating until thick and cool, about 3 minutes. Add one-third of egg mixture to each of the pistachio, strawberry, and vanilla mixtures; fold each just to blend.", "Beat cream in a large bowl until soft peaks form. Add one-third of cream to each of the pistachio, strawberry, and vanilla mixtures; fold each just to blend. Cover vanilla and strawberry mixtures separately; chill. Pour pistachio mixture into pan; smooth top. Cover; freeze until firm, about 45 minutes. Gently pour straw- berry mixture over pistachio layer; smooth top. Freeze until firm, about 45 minutes. Gently fold vanilla mixture to blend; pour over and smooth top. Freeze until firm, about 4 hours. DO AHEAD:", "Uncover semifreddo. Using plastic wrap as an aid, lift from mold. Invert onto a chilled platter; peel off plastic. Slice crosswise."]
