Endive with Bacon and Buttermilk Ranch Dressing

Name: Endive with Bacon and Buttermilk Ranch Dressing
Ingredients: For the buttermilk ranch dressing:; 1/4 cup mayonnaise; 2 tablespoons sour cream; 1 teaspoon minced shallot; 1 clove garlic, crushed and minced; 1 teaspoon lemon zest; 1/4 teaspoon mustard powder; 1/2 cup buttermilk, shaken vigorously; 1 to 2 tablespoons lemon juice; 1 splash sherry vinegar; 2 tablespoons minced parsley, plus more for garnish; 2 teaspoons minced chives, plus more for garnish; 1 teaspoon thyme leaves, plus more for garnish; ground black pepper to taste; For the salad:; 1/4 pound thick-cut bacon; 6 Belgian endives; sea salt, to taste; ground black pepper, to taste; 1 teaspoon minced fresh herbs