Banoffee Pudding

“Pudding,” in the UK, as I understand, is a generic term that can refer to any number of desserts. In a bit of wordplay, this recipe translates the British pudding banoffee pie, a tart filled with sliced bananas, dulce de leche, and whipped cream, into an American custard-style pudding. Banana and dulce de leche are cooked into a silky, smooth custard and then layered with whipped sour cream, digestive biscuits (though you could use graham crackers), and more dulce de leche. To give the dessert a shareable quality, I assemble it large-format. Any glass serving dish or bowl with a 2-quart capacity works, but assembling it in individual glasses is an option, too.