To the bowl of your stand mixer, with paddle attachment fixed, combine the cashew butter and unsalted butter. Mix until combined. In 1/2 cup increments, add the confectioner's sugar. Make sure each increment is incorporated before adding the next. It will reduce mess. Continue adding sugar until a soft dough forms. You should be able to pick up a tablespoon and roll it into a ball with no problem.
Line a large baking sheet with parchment paper, and using a small scoop (tablespoon size works) roll the dough into equal-sized balls. Place them on the parchment paper. Place the baking sheet in the freezer for 20 minutes.
Meanwhile, combine the chocolate and vegetable oil in a small bowl and place it in the microwave. Melt the chocolate in 20 second increments. Stir after each time increment until the chocolate has completely melted.
Remove the balls from the freezer and using a toothpick poke each ball and dip it into the chocolate about halfway up. Sprinkle with sprinkle of desired and then place each ball bake on the baking tray. Repeat for the rest of the balls. Place the tray back in the freezer for 20 more minutes until the chocolate is set.
Store the buckeyes in an airtight container and keep in the refrigerator. Enjoy!