Step 1

In a large mixing bowl, whisk pudding mix and 2% milk for 2 minutes until slightly thickened.

Step 2

Stir in sweetened condensed milk until smooth. Stir in vanilla. Fold in cool whip, 1/3 of it at a time, until smooth.

Step 3

Reserve 15 wafers for topping. In a 9x13 pan, layer half the remaining vanilla wafers, half the sliced bananas, and half the pudding mixture. Repeat the layers one more time.

Step 4

Be sure all bananas are covered with pudding or they will dry out and brown. Top with reserved 15 vanilla wafers. Chill 6-8 hours before serving. Store leftovers tightly covered in the refrigerator and eat within 24 hours if possible.