Knish | Publix Super Markets

Ingredients

• 1 (10-oz) package frozen spinach
• 1 cup (+1 tablespoon) vegetable oil, divided
• 1 cup warm water
• 4 large eggs, divided
• 2 teaspoons white vinegar
• 2 teaspoons kosher salt, divided
• 4 cups flour (+more as needed)
• 2 1/2 teaspoons baking powder
• Parchment paper
• 2 cups chopped yellow onions
• 2 tablespoons parsley, divided
• 3 cups mashed potatoes
• 1 teaspoon pepper
• 1/2 teaspoon paprika