To make the dressing, whisk the vinegar and mustard together with the garlic, slowly add the olive oil while whisking and season with salt and pepper to taste.
Bring a pan of water to the boil with the bay leaves, 1/2 white onion, lemon and peppercorns.
Carefully add the chicken and simmer gently until cooked, if you unsure it is worth investing a few dollars in a meat thermometer. The temperature should be at least 75 celcius/167 Fahrenheit, put the sliced bread on a baking tray and drizzle with the olive oil and season with salt.
Bake in a medium oven until crisp but soft in the middle.
Mix the leaves together with the onions and raisins. Turn in the salad
dressing and put into 4 good-sized bowls. Place slices of tomato and bread
around the edge. Slice the warm chicken at an angle and put attractively on
top off the salad. Sit back, enjoy and get someone else to do the washing up.