Coffee cocoa cake

I was given this recipe in the 80's by a very close friend. Why I like this recipe..3 reasons..Easily available ingredients , easy to follow, and the best chocolate cake recipe without using real chocolate, but using cocoa.

1 1/2 cups of flour
1/2 cup of cocoa
1 tsp baking powder
1 cup of sugar

125 gm melted butter
1 cup of yogurt
2 eggs
3/4 cup of freshly made strong coffee(or 2 tsp of instant coffee in 185 ml of water)

Mix the flour, cocoa , sugar and baking powder in a bowl and use a spn to mix it well.
Melt the butter in a pan. Take it off from fire, and add the egg and yogurt and mix well
make the coffee
Mix the coffee with the egg butter yogurt mix. Check the temp..it shouldn't be too hot. when it is not cold or hot add it in to the flour mix and stir well with a rubber spatula. Don't overbeat.
Pour the mix in to a lined 8 inch pan and bake at 350 for abt 35 mint.

Icing
2 tbl spn freshly made hot coffee
1 tbl spn butter
2 tbl spn cocoa
1 1/2 cup icing sugar

Mix the butter and coffee till the butter is melted and add the rest of the ingredients.. More icing sugar if the mix is too thin and more coffee if the mix is too thick.
Pour over the cooled cake.
Warning: This cake don't last more than 2 days( I never had to keep it more than a day because my kids would finish it in no time)