Potato Base Pizza

Dough

• olive oil, for greasing
• 50 g Parmesan cheese, cut in pieces (2 cm)
• 300 g potatoes, cut in pieces (3 cm)
• 10 g cornflour (2 Tbsp)
• 50 g cream
• 200 g plain flour
• 5 medium eggs
• ½ tsp fine sea salt
• ¼ tsp ground black pepper

Filling and Assembly

• 1 onion, quartered
• 100 g chorizo, sliced
• 50 g olive oil
• 50 g tomato purée
• 50 g water
• ¼ tsp ground black pepper
• ½ vegetable stock cube (for 0.5 l), crumbled
  or ½ tsp vegetable stock paste, homemade
• 200 g frozen spinach, defrosted, drained
• 200 g tomatoes, sliced (1 cm)
• ¼ tsp ground nutmeg (optional)
• 200 g Gouda cheese, diced (2 cm)