Ingredients

1 sheet frozen puff pastry, thawed and cut into six 3 1/2-inch rounds

1/4 cup light corn syrup

1/2 cup heavy cream

1/4 cup (1/2 stick) unsalted butter

2/3 cup sugar

1/2 cup cocoa powder

Coarse salt

4 firm-ripe bananas, thinly sliced

1 pint vanilla ice cream

1/4 cup chopped toasted walnuts

Preparation

Preheat oven to 375 degrees. Place puff pastry rounds, 2 inches apart, on a parchment-lined baking sheet and bake until golden and puffed, 15 to 20 minutes. Transfer to a wire rack and let cool.

Meanwhile, in a medium pot, combine corn syrup, cream, butter, sugar, cocoa powder, and pinch of salt; bring to a boil, whisking, over medium-high. Remove fudge sauce from heat and let cool slightly. (To store, refrigerate in an airtight container, up to 2 months.) Top each pastry with bananas, ice cream, sauce, and walnuts.