How to make
Beat the eggs with the sugar in a large container. To them add the yoghurt with baking soda extinguished in it. Stir and add the oil, flour, cocoa and cinnamon.
Stir until homogenized. Prepare the tray in which you'll be baking - butter and flour it. Preheat the oven to 410°F (210 °C) and bake until ready.
Prepare the glaze as follows: melt the butter in a small container, to it add the cocoa, milk and sugar. Stir until thickened.
Once the glaze cools, pour it over the cake and sprinkle generously with walnuts.