Pita Zeljanica - Cheese and Spinach phyllo pie

Ingredients

• - For the dough (same as for Burek) 430 g all purpose flour (3 and 1/4 cups)
• 240 ml warm water (1 cup)
• 1 and 1/2 tbsp neutral vegetable oil
• 1 tbsp white vinegar
• 1 tsp salt (+ some 1/2 cup of oil extra)
• - For the filling 250 g of cottage cheese
• 1/2 cup sour cream (or creme fraiche)
• 2 eggs
• 1 cup of either blanched or frozen whole spinach leaves
• 2 tsp salt
• 1/2 tsp ground pepper