Ingredients

3 table spoons olive oil.

knob of butter.

2 onions thinly sliced.

400 grams of floury potatoes,peeled and diced.

500 grams of firm zucchini, roughly chopped.

400 grams of fresh or frozen corn kernels.

2 teaspoon ground cumin.

2 cloves of garlic, crushed.

5 cups chicken or vegetable stock.

1/2 cup basil

To serve:

Thick plain yoghurt.

Extra basil leaves.

olive oil.

Preparation

Heat the olive oil and butter in a large saucepan. Add onions and potatoes with a good pinch of salt. Cover and cook 10 mins. Stirring occasionally. Add zucchini, corn, cumin, and garlic. Cook 2 mins. Add stock, season and bring to the boil. Reduce heat and simmer 10 mins or until the potatoes and corn are tender. Set aside to cool a little. Transfer one third of the soup and all of the basil to a food processor. Blend until smooth. Return to saucepan with other soup.

To serve: Reheat soup and season if necessary. Ladle into warm bowls. Top with a spoonful of yoghurt extra basil and a drizzle of olive oil.