Potato, Clothbound Cheddar, and Short Rib Pierogis | culture: the word on cheese

Ingredients

• 2 tablespoons salted butter
• 1 1/2 pound bone-in center-cut short ribs
• 4-6 cups beef broth
• 1 pound waxy or yellow potatoes (peeled and cut into 1-inch cubes)
• 3 tablespoons unsalted butter
• 3 medium yellow onions (about 8 ounces each)
• 2 tablespoons whole milk
• 1/3 pound clothbound cheddar cheese
• 1-2 tablespoons olive oil
• Salt (to taste)
• Pepper (to taste)
• 3 cups and 2 tablespoons all-purpose flour (plus more as needed)
• 1 1/2 teaspoons kosher salt
• 3/4 cup cold water
• 6 tablespoons salted butter
• 2 large eggs (beaten)
• Sour cream
• Minced chives