Pecans, caramel, chocolate. Name a better combination of flavors. I’ll wait. Americans have been dipping pecans in chocolate and/or caramel for as long as we’ve had reliable access to sugar and cacao.

Begin with a pecan-shortbread crust, add a layer of chocolate ganache, another of pecan- and caramel-infused ice cream, then meringue. Freeze overnight and just before serving, brown the meringue ...