Tomato tart with basil mascarpone

Ingrediënten

• 1 clove of garlic, peeled
• 60g basil leaves
• 30g pine nuts, toasted
• 30g parmesan cheese, grated
• Salt
• 110g olive oil
• 200g mascarpone
• 50g olive oil
• 60g unsalted butter
• 10 small onions, peeled and finely sliced
• 5g thyme leaves
• 5g rosemary leaves
• ½ tsp dijon mustard
• 20g sherry vinegar
• 250g all-butter puff pastry
• Tapenade (p.161)
• 35 oven-dried tomato halves (p.269)
• 1 medium egg, lightly beaten