Quinoa Avocado Salad with Buttermilk Dressing

Name: Quinoa Avocado Salad with Buttermilk Dressing
Ingredients: ¼ cup buttermilk; ¼ cup crème fraîche; 2 tablespoons white balsamic vinegar; 5 tablespoons lemon juice, divided; 2 tablespoons minced shallot; 1 small clove garlic, grated; ½ teaspoon salt, divided; ⅛ teaspoon ground pepper plus 1/4 teaspoon, divided; 2 tablespoons grapeseed or avocado oil, divided; 1 ¼ cups cooked quinoa, divided; 2 heads Belgian endive, cut into 1/2-inch pieces; 2 firm ripe Fuyu persimmons or pears, thinly sliced; 2 ripe avocados, sliced; ¼ cup chopped fresh dill