Melt chocolate chips in a large heatproof glass bowl (or smaller pot) using a double boiler method. Take a medium or small saucepan (a smaller one than your glass bowl), fill the pot with one or two inches of warm water. Take it to simmer over medium heat, and once water is heated through and steam released add the bowl on top. The glass bowl should not get in contact with water.

Add in the candy melts and stir constantly until about 70% of the melts are melted. Remove from the heat and continue to stir with a spatula until everything has melted and smooth.

Depending on which colors you are using you can divide the mixture between two bowls. Add desired food coloring to one bowl according to packaging instructions or desired color you want to achieve. Alternatively, you can use colored candy melts and melt them the same way as described above.

For a very smooth consistency add a drizzle of coconut or olive oil to the melting chocolate.

Using two forks, dip each Oreos into the chocolate. Carefully transfer the cookies to a cooling rack or parchment paper and add sprinkles. Let cool for a couple of minutes and refrigerate for 30 minutes or until chocolate is set.

You can then proceed with more decorations. To drizzle the chocolate use a fork or pastry piping bag with the smallest nozzle. Once finished, refrigerate again until the chocolate sets.