Tomato-Glazed Meatloaves with Brown Butter Mashed Potatoes

Name: Tomato-Glazed Meatloaves with Brown Butter Mashed Potatoes
Cuisine: European
Ingredients: 4 teaspoons vegetable oil; 1/4 cup (60 grams) tomato paste; 2 tablespoons cider vinegar; 2 teaspoons honey; 2 teaspoons Worcestershire sauce; 2 teaspoons smooth dijon mustard; 1/4 teaspoon table salt; 2 slices sandwich bread; 1/2 medium onion, roughly chopped; 1 garlic clove, chopped; 1 medium stalk celery, roughly chopped; 1 medium carrot, roughly chopped; Olive oil, for cooking; 1 teaspoon fine sea or table table salt, plus more for vegetables; Freshly ground black pepper; 2 pounds ground beef; 2 large eggs; 1 tablespoon tomato paste; 1 teaspoon dijon mustard; 1 teaspoon smoked paprika; 2 tablespoons Worcestershire sauce; 1/4 cup chopped fresh flat-leaf parsley; 1/2 cup (120 grams) milk; 2 pounds (905 grams) yukon gold potatoes (about 6); 8 tablespoons (4 ounces or 115 grams) unsalted butter; 1 cup (235 ml) buttermilk; 1 teaspoon fine sea or table salt; Finely ground black pepper