Put the white chocolate and the cake mix in a microwave safe container - I used a 12 ounce tall skinny ball jar - made it easy to dip the pretzel down in swirl and the pretzel rod to cover it.
Melt the white chocolate and cake mix in the microwave for 2-3 minutes depending on your microwave - check and stir often until fully melted and cake mix is dissolved and stirred into the white chocolate.
Dip the pretzel rods in the white chocolate, making sure to not over do it - dip in the sprinkles while white chocolate is still warm so they stick.
Lay carefully on parchment paper till the chocolate sets up.
Nutrition values are estimates, for exact values consult a nutritionist.