Potato And Cheddar Perogies – Simmer + Sauce

Ingredients

• For the Dough:
• 3 cups all-purpose flour, plus additional for kneading
• 1 cup water
• 1 large egg
• 2 teaspoons vegetable oil
• 1 teaspoon salt
• For the Filling:
• 1 1/2 pound russet potatoes, peeled and cut into 1-inch chunks
• 2 cups mild cheddar cheese, grated
• 1/2 teaspoon onion powder
• Pinch of white pepper
• Dash of ground nutmeg
• 4 tablespoons unsalted butter
• Sour cream, for serving (optional)