In a mixing bowl, combine the milk and the instant vanilla pudding mix. Whisk until smooth, allowing it to thicken, which usually takes about 2 minutes.

Add the whipped topping to the pudding mixture. Gently fold it in to maintain the light and airy texture.

Peel and slice the bananas into round pieces.

In your serving dish or cups, start by adding a layer of vanilla wafers at the bottom.

Spoon a layer of the pudding mixture over the wafers.

Place a layer of banana slices on top of the pudding.

Repeat the layering process until you run out of ingredients, finishing with a layer of pudding on top.

Cover the dish and refrigerate for at least 2 hours.