准备

• 将牛奶和百里香小树枝在1夸脱的锅中加热，直至在边缘周围冒泡，大约3分钟。盖上，从火上移开，静置20分钟以注入。丢弃百里香小树枝。
• 同时，将杏子放入中等耐热碗中，并用开水盖1英寸。放置以软化20分钟。
• 彻底冷却一个大的金属碗和电动搅拌机的搅拌器。在9×5英寸的面包盘的底部和长侧面上，并带有12×20英寸的保鲜膜，在长侧留有4英寸的悬垂。沿着侧面并进入角落的塑料光滑；如果有皱纹，没关系。塑料不会完全覆盖短两侧。

鞭打奶油

• Beat the cream in the chilled bowl with the chilled beaters on medium-high speed just until firm peaks form, 1 to 2 minutes. Refrigerate.

Make the zabaglione

• 排干杏子，将其转移到食物加工机中，添加杏蜜饯，然后加入粗泥。搁置。
• Clean and dry the beaters. In a 4-quart saucepan, bring 1-1/2 inches of water to a boil over high heat and then lower the heat to maintain a gentle simmer. Put the egg yolks, 1/4 cup of the sugar, and the infused milk in a medium metal bowl and set the bowl over the pan of simmering water; make sure the bottom of the bowl doesn’t touch the water. Beat on medium speed, frequently scraping down the sides of the bowl with a silicone spatula, until the zabaglione is thick, almost doubled in volume, and the beaters leave a trail when you lift them, about 5 minutes. Remove the bowl from the pan and fold the apricot purée and the chopped thyme into the zabaglione until combined. Set aside.

做酥皮

• Clean and dry the beaters. Return the pan to the heat and maintain the water at a gentle simmer. Put the egg whites, the remaining cup of sugar, the cream of tartar, and salt in a large metal bowl and set it over the pan of water. Beat on medium speed, occasionally scraping down the sides of the bowl with a clean silicone spatula, until light, fluffy, and shiny, about 3 minutes. Remove the bowl from the pan, add the vanilla, and continue beating until the meringue is very thick and billowy, about 2 minutes more.

Fold and freeze

• 使用硅胶刮刀将Zabaglione轻轻折叠到蛋白甜饼中，然后将其折叠在鲜奶油中，直到没有条纹保留为止。
• Scrape the mixture into the prepared pan and smooth the top with an offset spatula, scraping off excess if necessary to create a level top. Wrap the overhanging plastic over the top to cover and freeze for at least 6 hours and up to 3 days.

解雇并服役

• Peel back the plastic wrap from the top of the semifreddo. Invert the pan over a cutting board or serving platter. Lift off the pan, holding the overhanging plastic down on one side and then the other. Remove the plastic wrap. If the semifreddo looks wrinkled, warm a long knife or small offset spatula under hot running water, wipe the blade dry, and run it over the wrinkles to smooth them out.
• Slice the semifreddo crosswise into 1-inch-thick pieces to serve.