Put the popcorn kernels in a bowl, add some oil, and mix well. Place the kernels in a paper bag, fold the top over, and microwave for 3 minutes, or until the kernels have stopped popping.
Pour half of the warm popcorn into a bowl, grate dark chocolate over it, and mix well. Add a pinch of sea salt to really highlight the flavors.
Pour the rest of the popcorn into a large bowl and carefully insert a smaller bowl in the center, pushing the popcorn to the side.
Melt the white chocolate in a water bath and pour it over the popcorn in the space between the two bowls. Rotate the bowl to spread out the chocolate. If the chocolate is having a hard time spreading out, briefly place the bowl in a water bath. Once the chocolate has set, first remove the small bowl and then pull the white chocolate popcorn bowl out of the glass bowl.
Pour the chocolate popcorn into the white chocolate popcorn bowl.
