2 1/2 cups whole milk
1 (14 ounce) can sweetened condensed milk
1 egg
1/2 cup all-purpose flour
1/8 teaspoon salt
1 tablespoon vanilla extract
4 bananas
1 box vanilla wafers

In a saucepan, combine first five ingredients, turn heat on medium, and cook, whisking constantly, for 10 minutes or thickened into a pudding consistency. Remove from heat and stir in vanilla extract. Let cool.

Thinly slice one banana and place the slices in the bottom of a deep dish, top with approximately 1/4 of the pudding, then add a layer of vanilla wafers. Repeat until you have four layers. Cover and chill for several hours (but preferably overnight) and serve.