Spinach turnovers (fatayer)

Dough

• 150 g water
• 90 g olive oil
• ½ tsp salt
• 350 g flour

Filling

• 400 g fresh spinach leaves, washed and dried
• 350 g onions, cut into quarters
• 2 tsp salt
• 1 tsp sumac
• 100 g lemon juice, freshly squeezed

Assembly and Baking

• flour, for dusting