Crisp Chicken With Potato Salad And Anchovy Vinaigrette

Ingredients

• 12 small red or new potatoes
• 2 tablespoons red wine vinegar
• 2 tablespoons minced shallot
• 3 oil-packed anchovy fillets
• 1 teaspoon Dijon mustard
• 1 garlic clove
• 1/3 cup plus 1 teaspoon extra-virgin olive oil
• Sea salt and freshly ground pepper
• 2 tablespoons grape-seed oil
• 4 large skin-on boneless chicken thighs
• 5 ounces large amaranth leaves
• fleur de sel
• 1 teaspoon fresh lemon juice
• Small amaranth or baby spinach and mixed baby lettuce leaves, for garnish
• 1/2 cup fromage blanc or Greek yogurt