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Pork Tenderloin with Mustard

5 from 1 vote
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Course: Main Course
Keyword: pork, whole30
Prep Time: 10 minutes
Cook Time: 20 minutes
Total Time: 30 minutes
Servings: 4 servings
Author: Chef Abbie Gellman RD


  • 2 pork tenderloins ~1 pound each
  • Pinch kosher salt
  • Pinch ground black pepper
  • 1/2 cup whole grain mustard divided
  • 1 tablespoon extra virgin olive oil
  • 3 tablespoons Dijon mustard
  • 3 tablespoons sour cream


  • Pre-heat oven to 400 degrees F
  • Season tenderloins with salt and pepper and coat with ¼ cup of whole grain mustard.
  • Heat oil over med-high heat in a large oven-safe pan (I like to use cast iron). Once oil is hot, add pork and brown on all sides, turning to brown on all sides, ~6 minutes total.
  • Place in the oven and bake uncovered at 400˚F for 10-12 minutes, turning the tenderloin over halfway through baking. Bake until center of pork registers 130 to 135 degrees F then transfer to a cutting board and let meat rest 5-10 minutes.
  • To the pan, add remaining ¼ cup whole grain mustard, Dijon, and sour cream. Whisk over medium-low heat until warmed through. Add water to adjust consistency of sauce if desired.
  • Slice pork and serve with mustard pan sauce.