Pierogi ruskie are filled with creamy potato, farmer’s cheese, and onion. 🥟 Top them with golden fried onions. The full recipe is in the comments.

Step-by-Step Instructions for Perfect Pierogi Ruskie
Step 1: Make the Pierogi Dough
In a large bowl, sift the all-purpose flour and add salt. In a separate bowl, melt the clarified butter in boiling water. Gradually pour the water and butter mixture into the flour, mixing with a spoon until combined. Add the egg and mix until the dough comes together.
Transfer the dough to a floured surface and knead for 8-10 minutes until smooth and elastic. Cover with a clean cloth and let rest for 30 minutes.
Step 2: Prepare the Filling
Peel and boil the potatoes in salted water until soft. Drain and mash until smooth.
Sauté the chopped onions in clarified butter over medium heat until golden and fragrant.
Combine the mashed potatoes, quark cheese, sautéed onions, and cheddar cheese in a bowl. Season with salt and black pepper to taste. Mix well and let cool.