To make the salad, first boil your beetroot whole for 20 minutes or so, ensuring it is not completely soft.
Cut into cubes and place on a baking tray, which has been coated with olive oil and salt and pepper . Roast at 200C for 30 minutes or so and 5 minutes before removing, add your maple syrup to caramelize the beet in the last few minutes of cooking.
While your beet is cooling, make your pickled radishes. Slice your radishes first into paper thin slices.
Mix vinegar with sugar and let your radishes soak in this mixture
Assemble the salad by placing rocket on plate or in bowl, topping with cubed feta, cooled beetroot and walnuts.
Remove the radishes from pickling juice and add to salad.
The Vinaigrette
To make the vinaigrette,, just add maple syrup to the pickling juice and viola, you will have a dressing. which you can drizzle over the salad.