Whisk the egg yolks and evaporated milk in a heat-proof bowl placed over a saucepan of simmering water. Stir until the mixture coats the spoon and is warm to the touch. Transfer to a blender.
Add all the remaining ingredients except cinnamon and blend until smooth. Chill for 2-5 hours. Sprinkle with cinnamon and serve. Enjoy!
Notes
If raw eggs are not a concern, you can skip the simmering part and just blend all the ingredients in a blender.Adapted from Daisy's Holiday Cooking by Daisy Martinez