Potato and Cheese Sigara Burek Recipe

Ingredients (8)

• 1/2 pound (2 sticks) butter
• 1 1/2 pound russet potatoes (about 2 medium-large), peeled and diced into 1/2-inch cubes
• 2 cloves garlic, peeled
• 2 tablespoons sour cream
• 8 ounces (2 cups) kasseri cheese, grated (see note)
• Salt to taste
• 1 egg
• 1 pound (about 30 sheets) triangular yufka (see note)