Step 1

In a medium bowl, whisk together sugar and cornstarch.

Step 2

Mix in egg yolks. Set aside.

Step 3

In a medium saucepan, heat milk until it starts to bubble around the edges.

Step 4

Slowly whisk hot milk into egg mixture.

Step 5

Return to saucepan.

Step 6

Cook over medium low heat, stirring continuously, until custard thickens, about 5-8 minutes.

Step 7

Stir in butter and vanilla.

Step 8

Strain through a fine mesh sieve into a clean bowl.

Step 9

Let cool.

Step 10

In a small bowl, combine cream, sugar, and vanilla.

Step 11

Beat at high speed with an electric mixer until stiff peaks form.

Step 12

Spoon ½ inch custard into the bottom of each glass.

Step 13

Cover custard with banana slices.

Step 14

Top with 1 Tablespoon vanilla wafers.

Step 15

Spoon another ½ inch custard on top of vanilla wafers.

Step 16

Repeat layers to top of glasses.

Step 17

Spoon Chantilly cream on top of puddings.