Wash and rinse all your vegetables, then cut the broccoli and cauliflower into florets. In a food processor fitted with a steel blade, process the broccoli and cauliflower until fine and add them to a large mixing bowl. You may need to do this in batches - I needed three.
Process the carrot the same way and add to the bowl. Stir all ingredients to combine.
Add the rest of the salad ingredients to the bowl and mix with a wooden spoon until fully combined. Add lemon juice, vinegar and syrup and toss to coat.