Wash apples, remove stems, and press a wooden skewers into each stem-end of the apples. Set aside.
Prepare a parchment-lined baking sheet and set aside. Roughly chop dark chocolate and set aside approx. one-fifth of it. Add the larger part of chocolate to a heatproof bowl and set over a pot with simmering water. Let chocolate melt while stirring constantly. Add some coconut oil and stir to combine, then remove from heat. Stir in remaining dark chocolate until combined. Let the chocolate mixture cool down to approx. 35°C/95°F. Coat apples with chocolate completely with chocolate, let excess drip off, and transfer onto the prepared baking sheet to dry completely at room temperature.
Prepare a separate bowl for each coating. As soon as the dark chocolate layer is dried completely, repeat the melting process for the white chocolate: Roughly chop white chocolate and set aside one-fifth of it. Melt the larger part over the double boiler. Stir in remaining coconut oil, then remove from heat. Add remaining white chocolate and stir to combine. Glaze the bottom half of the apples with white chocolate, let excess drip off, then toss the apple in the desired coating while it’s still sticky. Transfer onto baking sheet and let dry completely before serving. Enjoy!