2vine-ripened tomatoes, thickly sliced crossways½small clove of garlic, finely chopped2 tspthyme leaves2 tspextra-virgin olive oil1 tspred wine vinegar1 tbspolive oil4rashers of rindless short-cut bacon4slices of sourdough breadTo top:inner leaves of half a baby cos, washed200 gmshredded roast turkey (preferably leg meat)Mayonnaise2egg yolks2 tspDijon mustard1 tbspwhite wine vinegar200 mlolive oil
For mayonnaise, pulse egg yolks, mustard and vinegar in a food processor until combined, then, with motor running, add oil in a thin, steady stream until emulsified and thick and season to taste with sea salt and freshly ground white pepper. Makes 1 cup. Mayonnaise will keep refrigerated for up to 2 weeks.
Preheat oven to 160C. Place tomato, cut-side up on a small baking paper-lined oven tray. Combine garlic, thyme, extra-virgin olive oil and vinegar in a small bowl, season to taste with sea salt, freshly ground black pepper and a pinch of sugar, then spoon over tomatoes. Cook for 45 minutes or until semi-roasted, then cool.
Meanwhile, heat olive oil in a frying pan over medium-high heat, add bacon and cook for 2-3 minutes on each side or until golden and cooked to your liking. Drain on absorbent paper.
To assemble, place 2 pieces of bread on a clean work surface, spread each with some mayonnaise, top with lettuce, roast tomato, bacon and turkey, then sandwich with remaining bread and serve immediately.