Preheat your oven to 350°F (180°C). Line a baking sheet with parchment paper.
In a large bowl, beat the eggs and sugar until pale and fluffy. Gently fold in the sifted flour and cocoa powder. Add the vanilla extract and mix until combined.
Spread the batter evenly on the prepared baking sheet. Bake for 12-15 minutes, or until the cake springs back when touched.
Immediately roll the hot cake (with the parchment paper) into a log shape and let it cool.
Whip the heavy cream with icing sugar until soft peaks form.
Carefully unroll the cooled cake, spread the whipped cream evenly over the surface, and sprinkle with chopped cherries. Roll the cake back up gently.
Heat ½ cup of heavy cream until it begins to simmer. Pour over the chopped dark chocolate, stirring until smooth to make the ganache
Spread or drizzle the ganache over the rolled cake. Decorate with cherries. Refrigerate for at least 1 hour before slicing. Serve and enjoy!