Pre-heat the oven to 180c and grease and line a 25x25 centimeters baking tray.
Melt the chocolate, butter and sugar together over a low heat, then leave to cool for about 5 minutes. Beat in each egg then stir in the flour and half of the mini eggs. Pour into the baking tray and scatter over the remaining eggs.
Bake for about 17-20 minutes then leave to cool and cut into squares.