The base flavor of this dessert is banana roasted with miso paste. Look for a mellow, yellow miso so as not to overwhelm the other flavors. The miso-roasted bananas are then incorporated into a pudding, made with milk, eggs, and cornstarch. Paired with that is a classic butterscotch sauce, made with brown sugar, butter, cream, whiskey, light corn syrup, and vanilla.
All trifles need whipped cream, which can be made with heavy whipping cream and a touch of vanilla bean paste (though vanilla extract can be substituted). Finally, you’ll need a few cubes of pound cake, which can be homemade or store-bought. Feel free to use a different type of mild-flavored cake if you happen to have leftovers on hand.