Vegetable and bean goulish

Ingredients

• 420 gram red kidney beans, rinsed and drained
• 1/2 cup frozen or fresh corn kernels (cut from 3 cobs)
• 2 sticks celery, chopped
• 1 large onion, chopped
• 1 green pepper, chopped
• 290 gram can tomato puree
• 1 teaspoon brown sugar
• 1/2 teaspoon chilli powder
• salt and freshly ground black pepper