Preheat the oven to 180°C/350°F.

Prepare a large Bundt cake tin.

Grease the tin with a small piece of butter then lightly coat with some flour.

Combine the flour, salt, and baking powder in a bowl.

Add the butter, oil, and sugar to a mixing bowl, and beat with a mixer on high speed for 30 seconds.

Add the eggs, one at a time, beating well after every addition.

Pour half a cup of the milk and mix to integrate. Fold in half the flour mixture. Mix with a wooden spoon at this stage.

Pour the rest of the milk and stir.

Add the rest of the flour mixture and stir well to fully incorporate the batter.

Add the lemon juice and zest and stir one more time.

Transfer the batter to the cake tin.

Bake for about 55-60 minutes, or until you insert a skewer into the center of the cake and it comes out clean.

Remove from the oven and set aside to cool down for 20 minutes.

Invert the cake to a flat dish. Sprinkle some icing sugar over the cake, optional.!