Mix the red wine vinegar, olive oil, sugar, salt and pepper and pour over diced cucumbers for a light pickle. Also use that liquid to dress your tomatoes and bread.
Slice one tomato very thin for the base of your salad. Season with salt and pepper and then add the remaining ingredients in a bowl and mix thoroughly.
Place the chopped tomatoes, fennel, onions and bread on top of the tomato disks and garnish with a drizzle of olive oil, torn basil and basil seeds if you have them.
