Sponge Cake Without Eggs

This is a recipe I haven't made since uni and I suspect originated during some difficult times. I haven't made it today, but it's for my good friend Simon.

Ingredients

butter or margarine
dessicated coconut
2 dl grapeseed oil
2 dl caster sugar
2 dl Greek yogurt
1 tsp bicarbonate of soda
4 dl plain flour
2 tbsp cocoa powder
1 tbsp vanilla essence
raisins and/or nuts (optional)

Method

1. Butter a cake tin, then pour some dessicated coconut and shake it around to get it well covered. Remove excess coconut.
2. Preheat the oven to 175 degrees C or gas mark 3.
   
3. Mix the oil and sugar (and vanilla, if using a liquid variety).
   
4. Separately, mix the flour, cocoa and vanilla (if using a dry variety).
   
5. Now you need to work fast. Add the soda to the yogurt, it'll start expanding fairly fast, so stir it into the oil and sugar mixture.
6. Then slowly add the dry ingredient mix and whisk until smooth.
7. Add raisins and/or nuts.
8. Pour into the cake tin and bake in the middle of the oven for 30-40 minutes. Test with e. g. a bamboo skewer, it's ready when the skewer comes out clean.

Update 9th December 2006: I had a chat with my Mum today, she said that her version of this recipe uses oil instead of butter or margarine. Sunflower or olive oil.