Blackberry cake

Method

• step 1

  Heat the oven to 180C/fan 160C/gas 4 and oil and line a deep 20cm springform cake tin. Whisk together the sugar and olive oil in a bowl. Add the eggs, one at a time, with 1 tbsp of flour until completely incorporated. Whisk in the remaining flour and ¹/2 tsp salt. Whisk in 125ml of the yogurt, the vanilla and lemon zest, then pour into the tin. Push the blackberries into the cake, then bake for 40-45 minutes or until a skewer poked into the middle comes out clean. Cool completely in the tin.

• step 2

  To make the coulis, put 150g of the blackberries, the icing sugar, lemon juice and 2 tbsp of water into a small pan. Cook very gently until the berries have just burst and are saucy and syrupy, then stir through the remaining blackberries. Remove from the heat and cool.

• step 3

  Put the remaining 100ml of yogurt, the double cream and the icing sugar into a bowl and whip to soft peaks. Take 2 tbsp of the blackberry coulis and fold this through the cream to create a ripple effect. Pile the cream onto the cake and spoon ¹/2 of the remaining coulis on top. Cut into wedges and serve with the rest of the coulis.