Meaty Potato Soup - Kosher.com

Ingredients

• 2 pounds bone-in flanken
• 1 teaspoon kosher salt
• 1 teaspoon coarse black pepper
• 2 teaspoons olive oil, divided
• 2 cups deeply golden sautéed onions
• 1 cup dry white wine like Baron Herzog Chenin Blanc
• 5 pounds potatoes, peeled and large-diced
• 12-14 cups chicken stock (use strained leftover chicken soup if you have)
• salt, to taste
• pepper, to taste