Charred Onion Dip Recipe | Epicurious

Ingredients

• 1 thinly sliced shallot
• 1 thinly sliced leek
• 2 thinly sliced scallions
• 2 tablespoons olive oil
• 1 grated garlic clove
• 1/2 cup mayonnaise
• 1/2 cup sour cream
• 2 teaspoons fresh lemon juice
• 1 teaspoon chopped thyme, plus more for topping
• 2 tablespoons buttermilk
• Salt
• Pepper