Grandma's Secret Homemade Pierogi Recipe - Family Favorite - The Dream Cafe

Ingredients

• 6 cups (1440 ml) all-purpose flour
• 2 eggs, beaten
• 2 tsps salt
• 6 tbsps (90 ml) canola or vegetable oil
• 2 cups (480 ml) cold water (split into 2 parts)
• 3.75 lbs (1700 g) baking potatoes
• 4.5 cups (540 g) cheddar cheese, shredded finely
• 1 medium white onion, chopped finely
• 0.33 cup (75 g) softened butter (divided)
• Salt to taste
• White pepper to taste (or very fine black pepper)
• 1 onion, diced or sliced thinly
• 2 tbsps (30 ml) butter (or as needed for frying)
• Sour cream (optional for serving)