• To begin, bring the pot of water to a boil over high heat. Once the water is boiling, reduce the heat to medium high.
• Next, place the mixing bowl on top of the pot. Add sugar, flour and salt to the mixing bowl. Whisk together to combine.
• Blend in egg yolks and milk. Whisk together to combine. Cook stirring constantly for 10 to 12 minutes or until thickened. You will want to be attentive when cooking custard because it can scorch and you'll have to start all over.
• Finally, remove thickened custard from heat; stir in vanilla.

Assemble the dessert:

• In a small casserole dish or serving bowl, add a layer of vanilla wafers. I like to add some vanilla wafers around the side of the dish also.
• Next add a layer of the pineapple tidbits.
• Pour a layer of the vanilla custard over the wafer/pineapple layer.
• Repeat layering process with another layer of vanilla wafers, pineapple and custard.
• Garnish top with additional vanilla wafers, if desired.
• Delicious served warm or cold. Keep refrigerated.