Grease a 12x16 inch baking pan and sprinkle with a little bit of cornstarch.

Add gelatin, 8 tablespoons of water and jam in a big bowl. While the gelatin rests and grows, prepare a syrup with sugar, orange zest and water. Cook until the sugar is dissolved.

Add the syrup to the gelatin and start beating. It takes about 15 minutes. After the first 5 minutes, you'll notice that it's thicker and your machine is working a little bit harder. After 15 minutes turn it off and using a well greased spatula spread the marshmallow into the prepared pan. Let it sit for half an hour before cutting.

In a small bowl, mix icing sugar and corn starch.

Put marshmallow onto a board. Sprinkle some icing sugar-starch mix over the marshmallow and start cutting.

In a medium bowl, add dark chocolate chips and melt in the microwave for 2 to 2 and a half minutes. Stopping every 30 seconds to mix. Add the oil and mix well.

Prepare a flat surface with a piece of parchment paper.

With the help of a spatula, cover half of each marshmallow with chocolate. Set them to dry on parchment paper.

In a small bowl, melt white chocolate chips for 1 minute, stopping after 30 seconds to mix.

With a teaspoon, pour over the marshmallows.

Allow to set and store in an airtight container.