Creamy Butternut Squash and Tomato Soup

Name: Creamy Butternut Squash and Tomato Soup
Cook time: 40 min
Total time: 40 min
Ingredients: 1 butternut squash, sliced, de-seeded and cubed; 1 onion, quartered; 2 cloves garlic; a glug of olive oil; 400 tin tomatoes; 2 tbsp tomato puree; 2 tsp ground cumin; 1 tsp ground ginger; a good grinding of salt and pepper; 1 pint/½ litre/2 ½ cups vegetable stock