Greek Brownie made with a microwave
Melt dark chocolate and butter together using a double boiler.
Place Greek yogurt in a bowl, add sugar and egg, and mix well.
Add the melted chocolate and butter to the Greek yogurt mixture.
Sift cake flour and cocoa powder into the batter and mix.
Finely chop and add walnuts or almonds.
Pour the batter into a baking tin and smooth the surface.
Bake in a preheated oven at 180°C for 20-25 minutes.
Let it cool, then cut into desired sizes.