Preheat oven to 180ºC. Break eggs into a bowl.
Add sugar and blend with a hand blender till frothy. Sieve refined flour and cocoa powder into a bowl. Add coarsely ground almonds and mix.
Add this flour mixture gradually to the eggs, mixing with the blender continuously. Add melted butter and mix.
Pour the batter into muffin moulds till half full. Sprinkle chopped almonds on top and bake in the preheated oven for twenty to twenty five minutes.