Asparagus Fries | America's Test Kitchen

Ingredients

• ½ cup sour cream
• 1 tablespoon lemon juice
• 1 tablespoon Dijon mustard
• 1½ teaspoons table salt, divided
• ¾ teaspoon pepper, divided
• ¼ cup plus 3 tablespoons all-purpose flour
• 3 large eggs
• 4 slices hearty white sandwich bread, torn into 1-inch pieces
• 1 pound (½-inch-thick) asparagus, trimmed
• 1 quart peanut or vegetable oil