Herbed Roast Pork Tenderloin | America's Test Kitchen

Ingredients

• 3 tablespoons unsalted butter , softened
• 2 tablespoons coarse-grain mustard
• 1 teaspoon grated lemon zest
• 1 teaspoon fresh lemon juice
• 1 garlic clove , minced
• 1 tablespoon minced fresh sage
• 1 tablespoon minced fresh thyme
• 1/2 teaspoon table salt , divided
• 1/2 teaspoon black pepper , divided
• 1 teaspoon sugar
• 3 pounds pork tenderloins (2 loins total, each 1.5 pounds)
• 1 teaspoon olive oil