1.
Sift the cocoa and confectioners’ sugar together into a bowl.
2.
When the egg white mixture is ready, set aside about half of it in a separate bowl.
3.
Add the cocoa-sugar mixture to the remaining whites in the mixing bowl, along with three ounces of the chopped chocolate and mix on low to just combine. Add the reserved whites back into the bowl and mix very gently with a silicone spatula to create a marbled effect.
4.
Using a large spoon, scoop up approximately one tablespoon at a time of the meringue batter and, with another spoon, gently push the batter off the first spoon onto the prepared cookie sheet, setting the meringues about two inches apart. Chop the remaining one ounce of chocolate a little smaller and then sprinkle it on top and around the sides of the meringues. Bake for two hours.
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