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

Dough

• 270 g water
• 1 tsp sugar
• 1 heaped tsp dried instant yeast
  atau 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