Pre-heat the oven to 180°C fan (375°F) . Brush the tray with some butter and then dust with flour.

In a bowl mix the flour and the baking powder.

Cut the apples and put the slices into a deep dish. Squeeze some lemon on top, add the spices and the marsala. Let it sit while you prepare the batter.

Separate the yolks from the egg whites. Whisk the egg whites until they from stiff peaks.

Add the sugar, milk, lemon zest, oil and a tablespoon of lemon juice to the egg yolks. Mix well with a whisk or with an electric hand mixer.

When all the ingredients are well mixed, add 1/3 of the flour and mix until incorporated.

Fold in gently 1/3 of the egg whites, then repeat until both flour and egg whites are all mixed.

Add the raisins and walnut and mix gently.

Spread half of the batter into the tray and then cover with half of the apples.

Add the remaining batter and then cover with the apple slices.

Dust with some sugar and then bake for around 45 minutes.

Check the cake after 40 minutes, every oven is different so you might want to keep an eye on the cake to avid over cooking.

Once cooked let it rest on a wire rack for at least 10 minutes. You can serve it with some cream on top or a vanilla ice cream, but I find it perfect as is!