Piperade on crusty bread - Good Food Middle East

Ingredients

• 3 tbsp olive oil
• 1 large onion, sliced
• 2 ripe, vine-ripened tomatoes
• 2 mixed sweet peppers, deseeded and sliced
• 2 garlic cloves, finely chopped
• pinch or two of sugar
• 1-2 tsp sherry vinegar, to taste
• small handful basil, torn
• 12 chunky slices of baguette
• small bunch basil leaves, sliced