Marinate the florets in the garlic, ginger, vinegar, chilli powder, black pepper, powdered ingredients and salt. Leave for 3-6 hours or overnight.
Cut the capsicums, onions and tomatoes to match the florets.
Thread a piece of tomato, onion and capsicum into the skewer, follow with a floret.
Repeat till all the pieces are taken care of.
Pour whatever juices there may be over the prepared shashlik and place over a drip tray.
Brush with oil. Bake in a preheated oven 15-20 minutes, till the vegetables are bite-like, or over a barbecue pit, or a grill.
Brush again with a little oil when almost done.
Serve hot by itself or over a bed of boiled rice.