Line an 8x8 pan with parchment paper and set aside.
In a large microwavable bowl, heat the white chocolate chips and condensed milk for one minute. Stir and then heat in 30 second intervals, stirring each time after until it's completely melted and smooth.
Add in the RumChata and stir. Microwave for another 30 seconds.
Transfer the mixture to the pan and smooth the mixture out. Top with crushed Cinnamon Toast Crunch.
Refrigerate for 4-6 hours or until completely firm.