Place butter in a small sauce pan and heat on medium until melted. Set aside.
In a mixing bowl, whisk the eggs together with the powdered sugar. Add the heavy whipping cream and cooled melted butter. Combine the all-purpose flour, baking powder and the unsweetened cocoa powder. Mix until smooth.
Bake for 22 minutes at 350F/180C. (Every oven heats differently, monitor your cake from 20min). It is ready when the toothpick inserted comes out clean.
Once your Easter Chocolate Nests (M&Ms) are out of the oven, let them cool down for a couple of minutes. Then, flip onto your cooling rack and prepare the chocolate ganache.
CHOCOLATE GLAZE PREPARATION
Pour the Heavy Whipping Cream into the Mini Round Mold and bring it just to a boil in microwave, about 30 seconds at a time (1 minute total). Add the dark chocolate chips and swirl to coat all chips. Allow to sit for 2 minutes, then stir.
Decorate to your liking: I used M&Ms. Enjoy & Bon Appétit!