How to make
Preheat the oven to 370°F (190 °C). Beat the eggs with the sugar until you get a fluffy consistency and alternate pouring in the orange peel, oil and yogurt. Beat with a mixer and in portions, pour it into the premixed flour, vanilla and baking powder.
Beat again and take 1/3 of the mixture to beat with the cocoa. Grease and lightly flour a cake form. Begin alternating white, brown, white mixture until finished.
Put the cake to bake, checking it with a stick, it needs be dry when you take it out of the cake. Leave the finished cake to cool slightly, invert it onto a platter and sprinkle with powdered sugar.