Arancini with Courgettes and Lemon Mayonnaise - James Martin Chef

Ingredients

• 1/2 onion, peeled and diced
• 25g butter
• 250g risotto rice
• 100ml white wine
• 500ml veg stock
• 200g courgettes finely diced
• 50g grated parmesan (or vegetarian alternative)
• 25g mascarpone
• salt and pepper
• few sprigs thyme
• 1 lemon zest
• 100g plain flour
• 3 eggs, beaten
• 200g panko breadcrumbs
• 2l vegetable oil for frying
• 2 egg yolks
• 1 tbs white wine vinegar
• 1 tbs Dijon mustard
• 200ml veg oil
• 1 lemon juice