Copper Pot Molasses Rum-Glazed Pork Tenderloin

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

Juicy pork tenderloin brushed with a rich molasses and Diplomático-style rum glaze, roasted to perfection with a caramelized crust. This caribbean-inspired pork ready in about 45 minutes pairs pounds, trimmed pork tenderloin, Diplomático dark rum, blackstrap molasses for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 320 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 35 min Serves 4 Caribbean cuisine 320 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. In a small bowl, whisk together 1/4 cup Diplomático dark rum, 3 tbsp blackstrap molasses, 2 tbsp soy sauce, 3 minced garlic cloves, 1 tbsp chopped fresh thyme, and 1 tsp freshly ground black pepper.
  2. Step 2: Rub 1.5 pounds trimmed pork tenderloin with 2 tbsp olive oil, then brush half of the rum-molasses glaze all over the pork.
  3. Step 3: Place the pork on a roasting pan and roast in the preheated oven for 20 minutes. Remove from oven and brush with the remaining glaze.
  4. Step 4: Continue roasting for another 10-15 minutes until an internal temperature of 145°F is reached and the glaze is sticky and caramelized.
  5. Step 5: Let the pork rest for 5 minutes before slicing into 1/2-inch medallions and serving with pan juices.

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Frequently asked questions

How long does Copper Pot Molasses Rum-Glazed Pork Tenderloin take to make?

Total time is about 45 minutes (10 min prep + 35 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Copper Pot Molasses Rum-Glazed Pork Tenderloin?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep diplomático dark rum from drying out.

Can I substitute ingredients in Copper Pot Molasses Rum-Glazed Pork Tenderloin?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Copper Pot Molasses Rum-Glazed Pork Tenderloin for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Copper Pot Molasses Rum-Glazed Pork Tenderloin?

Caribbean pork like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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