I found this great recipe on Pinterest and was totally sold straight away - quick , easy and relatively healthy (as for a cake, of course).
Recipe comes from Crumb (lovely blog btw, you should check it). Any changes or suggestions by me in the brackets, in Italics.
Yoghurt cake with fruits
1/2 cup plain whole-milk yogurt
1 cup sugar
3 large eggs
1/2 cup canola oil (I used vegetable oil and olive oil and both worked well)
1 1/2 cups all-purpose flour
2 tsp baking powder
1/4 tsp salt
1 tbsp grated lemon zest
1 cup fresh red currants (or other fruits - I made as well versions with raspberries, blueberries and even apricots)