New Potato and Radish Salad

Ingredients (14)

• FOR THE VINAIGRETTE:
• 1/4 cup cider-vinegar
• 10 cornichon pickles
• 3 tbsp fresh dill
• 1 shallot
• 3 tbsp Dijon mustard
• 1 tbsp sugar
• Kosher salt
• 1/2 cup good-quality extra-virgin olive oil
• FOR THE SALAD:
• 2 lbs red new potatoes
• 4 celery ribs
• 8 large radishes
• 1/2 cup creme fraiche