Preheat the oven to 180°C/Fan 160°C/Gas 4. Grease a 900g loaf tin and line the base with baking parchment.
In a large bowl, whisk together the oil, yoghurt, caster sugar, eggs and vanilla extract. Gently stir in the flour, baking powder and
apricots to make a thick batter.
Pour the batter into the loaf tin and bake for 50–55 minutes, or until a small knife inserted into the middle of the cake comes
out clean. Allow to cool slightly before removing from the tin and then leave to cool completely on
a wire rack.
Mix together the icing sugar and enough lemon juice to make a thick icing. Drizzle this over the cake, scatter over the pistachios (if using), then slice and serve.