Ingredients
Equipment
Method
- Whisk the sugar, cornstarch and salt together in a medium saucepan. Whisk in the milk and egg yolks until smooth.
- Cook over medium heat, whisking constantly, until the custard thickens and bubbles — about 6–8 minutes. Boil for 1 minute, whisking, then remove from the heat. The full minute of bubbling is what activates the cornstarch, so the custard sets firmly.

- Stir in the butter and vanilla until melted and smooth.
- Slice the bananas directly into the cooled crust, arranging them in an even layer.

- Pour the hot custard over the bananas and smooth the top with a spatula.
- Press plastic wrap directly onto the custard surface to stop a skin forming, and chill for at least 4 hours, until fully set.
- Top with whipped cream just before serving, spreading it to the edges or piping rosettes.

- Slice with a sharp knife, wiping the blade clean between cuts, and serve cold.

Notes
Slice the bananas straight into the hot custard so they do not brown, and chill the pie for at least 4 hours — a fully set custard is what makes a clean slice.
