Florentine-style Spelt Pizza - Pizza fiorentina con farina di farro

Dough

• 270 g water
• 1 tsp sugar
• 1 heaped tsp dried instant yeast
  ou 15 g fresh yeast crumbled
• 60 g extra virgin olive oil plus extra for greasing
• 500 g spelt flour
• 2 tsp fine sea salt

Topping

• 100 g mozzarella cut in pieces (2 cm)
• 100 g feta cheese crumbled
• extra virgin olive oil for drizzling
• 150 g kale shredded, thick stalks removed
• 4 medium eggs