Preheat the oven to 425 degrees F (220 degrees C). Season pork with salt, freshly ground black pepper, and cayenne.
Heat vegetable oil in an oven-proof pan over high heat. Sear pork in the hot oil until well-browned on all sides. Turn off the heat, and transfer to a plate.
Mix mustard, maple syrup, and cumin together in a small bowl. Use a spoon to spread mustard mixture all over the surface of the pork, getting as thick a layer as possible.
Transfer the pumpkin seeds on top of the mustard mixture in a thick layer, and lightly press down into the surface. Press pumpkin seeds into the sides as well.
Transfer pork back into the pan and add 1/2 cup of broth.
Roast in the preheated oven until pork is slightly pink in the center, about 20 minutes. An instant-read thermometer inserted into the center should read at least 145 degrees F (63 degrees C). Remove pork to a plate and cover loosely with foil.
Place the same pan back over medium-high heat and add remaining 1/2 cup of broth, rice vinegar, and balsamic vinegar. Stir with a spoon and bring to a boil.
Cook until liquid has reduced by half, about 1 minute. Turn off the heat and stir in butter. Taste for seasoning and serve over sliced pork.
Nutritional Facts
Per 2 servings
Calories: 545
Carbohydrate: 12g
Fat: 33g
Fiber: 1g
Protein: 50g
Sugar: 6g
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