When it comes time to make the dip for the rim from scratch, there is an incredibly sharp division between whether to make use of Lucas candy or not. In reality, you do not "need" to make use of these candies. They are a repetition of flavors already included in the dip's rim, and even if you're not looking for an infusion of fruit flavors, it removes many of the advantages of making use of these candies. In our tests, we were able to find that the candy was an easy method to get the right balance of sweetness and spicy flavor. Also, this recipe "works" without the need to conduct a great deal of tasting and adjustment when cooking. If you absolutely must avoid Lucas candies for whatever reason, you could try substituting granulated sugar in their place. It is possible to alter other ingredients (like the chamoy or tajin) to ensure that the mixture remains thick enough to adhere to the rim of the drink, however.