Sauerbraten (recipe)

• 2 cups water
• 1 cup cider vinegar
• 1 cup red wine vinegar
• 1 medium onion, chopped
• 1 large carrot, chopped
• 1 tablespoon plus 1 teaspoon kosher salt, additional for seasoning meat
• 1/2 teaspoon freshly ground black pepper
• 2 bay leaves
• 6 whole cloves
• 12 juniper berries
• 1 teaspoon mustard seeds
• 1 (3 1/2 to 4-pound) bottom round
• 1 tablespoon vegetable oil
• 1/3 cup sugar
• 18 dark old-fashioned gingersnaps (about 5 ounces), crushed
• 1/2 cup seedless raisins, optional