Step 1

Combine flour, sugar, and salt in a heavy saucepan.

Step 2

Beat egg yolks and milk, mixing well.

Step 3

Stir into dry ingredients, cook over medium heat, stirring constantly until smooth and thickened.

Step 4

Remove from heat and stir in vanilla.

Step 5

Layer one-third of the vanilla wafers in a 2-quart baking dish. Slice 2 bananas and layer over the wafers.

Step 6

Pour one-third of the filling over bananas.

Step 7

Repeat layers twice.

Step 8

Serve immediately or it can be served after cooling in the refrigerator.