In a double boiler, gently melt the beeswax and cocoa butter together.
Once they are melted, stir completely to combine.
Prepare your molds. If you are using a silicone mold, the tarts will pop right out. If you are using a plastic mold, spray with silicone release spray first for ease of tart removal.
Pour the liquid oils into the mold and allow to cool completely.