21 hazelnut tarts ice Recipes

heavy cream, whole milk, sugar, divided, kosher salt, egg yolks, freshly ground black pepper, sugar, egg white, kosher salt, skinned hazelnuts, nonstick vegetable oil spray, chocolate wafer cookies (such as nabisco famous chocolate wafers; about 28 cookies), coarsely broken, unsalted butter, melted, high-quality milk chocolate (such as valrhona, scharffen berger, or lindt), chopped, heavy cream