Ingredients
Method
For the Dough
- Whisk the flour and the salt together in a large bowl. Add the remaining ingredients and stir until a shaggy dough forms.
- Transfer the dough to a floured surface and lightly knead it until silky to the touch. Wrap the dough tightly and transfer to the fridge. Let chill for 1 hour.
For the Filling
- While the dough is chilling, make the filling. Peel the potatoes and cut them into 1-inch thick medallions. Place them in a medium-sized pot and cover with water. Place over high heat and bring the water up to a boil. Liberally salt the water and let the potatoes cook until they are fork-tender. This should take 10-15 minutes.
- Drain the potatoes and add the cheese, sour cream, butter, salt and a ton of pepper. Using a potato masher, mash the potatoes until the butter melts and the mixture is smooth. Cover and set aside to cool at room temperature.
To Assemble
- Place the shallots in a small saucepan and cover with the oil. Place the saucepan over medium-low heat. Cook the shallots, swirling occaisionally, until golden. This should take 10-12 minutes. Remove the shallots from the saucepan, using a slotted spoon. Transfer them to a plate lined with paper towel and immediately sprinkle with a little salt. Set aside.
- On a floured surface, roll the dough out to a 1/8 of an inch thick. Cut circles out of the dough using a 2 1/2 inch biscuit cutter. Expand the circle a little, using a wooden dowel, before adding 2 teaspoons of the filling to the center.
- Fold the dough taco-style and secure with a hard pinch in the center. Pinch to seal the pierogi all the way around. Transfer the finished dumpling to a floured tray. Repeat until you run out of dough or filling or both.
- Once the pierogies are sealed, you can either place the entire tray in the freezer and freeze for 30 minutes before transferring them to a freezer bag. Or you can cook them right away by placing a large pot of water over high heat. Once the water is boiling, salt the water and add your pierogis, working in batches. Cook the pierogis for five minutes. Transfer the cooked pierogis to a plate and set aside.
- Heat a 1/4 cup of the reserved shallot oil in a large skillet until simmering. Working in batches, fry the pierogis until golden.
- Arrange the radicchio leaves on a large platter in a single layer. Top the radicchio with the golden pierogies and garnish with the crispy shallots, dill fronds, shredded pecorino cheese, and fresh black pepper. Serve immediately.
