Preheat the oven to 170°C. Grease and line a medium loaf tin.
Combine the flour and baking powder in a mixing bowl.
In another bowl whisk the egg and sugar until pale and fluffy. Add the oil and yogurt.
Combine the wet and dry ingredients into a smooth batter.
Tip half of the batter into the loaf tin then spread the jam evenly on the top. Spoon over the remaining batter and scatter some shredded coconut over, covering the top.
Bake in the middle of the oven for 45-50 minutes until golden.
Turn off the oven, but leave the tin in the oven for 5 minutes (open the oven door). Then take the tin out of the oven, rest for 5 more minutes.
Transfer the cake to a wire rack and let it cool completely.
Serve with some icing sugar dusted over it, if you like.