Mix flour, salt, chilli powder, cumin and baking powder in a bowl. Stir in about 275 millilitres of cold water with a whisk until a smooth, thick dough is formed.
Clean and wash the cauliflower and divide it into florets. Peel and wash the carrots and cut them into sticks. Heat oil in a high pot to 180 degrees. Use a fork to pull the vegetable pieces through the dough one by one, let them drip off a little and deep-fry them in portions in the hot oil for a few minutes until golden brown and crispy.
Take out and drain on kitchen paper. Arrange the vegetables on a plate. Garnish with coriander. Add chili sauce.