Savoury Cheesecake with Caramelised Onions

Cheesecake

• 200 g oatcakes
• 125 g unsalted butter, diced
• ½ tsp fine sea salt
• 100 g Parmesan cheese, cut in pieces (2 cm)
• 4 egg yolks, from large eggs
• 600 g cream cheese with herbs
• 180 g mascarpone

Caramelised Red Onions

• 20 g olive oil
• 400 g red onions, sliced (1 cm)
• 30 g water
• ½ tsp fine sea salt
• 2 - 3 fresh chives, finely chopped, for garnishing