Combine: Place the coconut cream, sweetened condensed milk, coconut milk, evaporated milk, rum, vanilla extract, cinnamon, nutmeg, and salt (if used) in the body of a large, high-speed blender.
Blend the contents until it's thoroughly incorporated and absolutely smooth. In order to make sure the coconut cream has completely dissolved and there are no pieces remaining, I prefer to double-check the mixture with a whisk or rubber spatula.
Coquito in a bottle: This recipe yields approximately 60 ounces of coquito. Glass carafes, mason jars, weck jars, or any other glass container you have with an airtight top are the ones I like to use. If using cinnamon sticks, add them to your glass vessel(s) in the following manner: split the sticks between two bottles or put all of the sticks in one bottle. Next, slowly transfer the coquito into the vessel or vessels, being sure to leave an inch of headroom for shaking. To properly integrate all the ingredients, shake well after closing the bottles and serving the coquito.
Chill and allow to cure: Place your coquito in the fridge. Let the coquito rest for a minimum of four hours. It is preferable to let the coquito a full day or 24 hours to relax. As the rum's strength lessens and its taste deepens, the curing process will give the coquito a more complex flavor profile.
Serving Tip: Before serving, give the coquito a good shake! If preferred, top the coquito (served with or without ice) with a sprinkle of nutmeg or cinnamon and/or a cinnamon stick garnish. I salute you all!
Coquito storage: This coquito keeps for a long time because it isn't made with eggs. Coquito will last for two weeks if stored in the refrigerator and is always sealed with an airtight lid. Although you might be able to finish it earlier, I do advise eating it within that window of time.