BBC Food - Recipes - Tomato salad Maman Blanc

Ingredients

• 4 large Coeur de Boeuf or beefsteak tomatoes, thickly sliced
• 1 red onion , finely sliced
• 1 shallot , finely chopped
• 1 garlic clove, crushed
• 1 tbsp Dijon mustard
• 3 tbsp rapeseed oil
• splash white wine vinegar
• 1-2 tbsp warm water
• 2 tbsp roughly chopped fresh flatleaf parsley
• 1 small handful fresh basil leaves