Sheperd's Pie

Name: Sheperd's Pie
Prep time: 1 h
Cook time: 1 h
Total time: 2 h
Cuisine: European, British
Ingredients: 1½ pounds 90% lean ground beef; ½ teaspoon baking soda; 2 teaspoons salt, divided; 2½ pounds russet potatoes, peeled and cut into 1-inch chunks; ¼ cup sour cream; 5 tablespoons unsalted butter, cut into 1-in chunks; ¼ cup half & half; 4 oz bacon, diced (about 3 slices thick-cut bacon); 2 medium yellow onions, diced; 2 carrots, diced; 3 cloves garlic, minced; 1 cup red wine; 2 tablespoons all-purpose flour; 3 tablespoons tomato paste; 1 teaspoon Worcestershire sauce; 1½ cups chicken broth; 1 tablespoon chopped fresh thyme; ½ teaspoon freshly ground black pepper; ½ cup frozen peas; 2 tablespoons finely chopped chives