Dinner · Part 2 of 3: Instructions
Roasted Pork Loin with Garlic Herb Potatoes Step-by-step instructions

- Prep
- Cook
- Total
- Serves
- 4
Before you start
Before beginning, ensure all ingredients are at room temperature to promote even roasting. Preheat the oven fully to the specified temperature, as a hot oven is necessary to achieve the desired golden crust on the potatoes. Prepare the roasting pan by ensuring it is clean and dry.
Have all necessary tools, including a sharp knife and a reliable meat thermometer, readily available on the counter. Taking these small steps beforehand ensures a smooth, stress-free cooking experience from start to finish.
Ingredients at a glance (4)
- 2 lb pork loin roast
- 1.5 lb baby potatoes, halved
- 4 cloves garlic, minced
- 2 tbsp mixed fresh herbs, chopped
Instructions
Preparation and seasoning
- Season the pork and potatoesPreheat the oven to 400°F (200°C). In a small bowl, combine the minced garlic and chopped fresh herbs. Place the pork loin in the center of the roasting pan and arrange the halved baby potatoes around it. Rub the herb and garlic mixture evenly over both the pork and the potatoes, ensuring everything is well coated for maximum flavor during roasting.Look for The mixture should look fragrant and well-distributed over all ingredients.Tip Pat the pork dry with paper towels before seasoning to help the herbs adhere better.
At the end of this phase, the pork and potatoes should be evenly coated in the herb and garlic mixture. Ensure the potatoes are distributed in a single layer around the pork, as this placement is critical for even roasting. The pan should be ready to go directly into the oven, with all components arranged to maximize surface area contact with the heat.
Roasting process
- Roast in the ovenPlace the roasting pan in the preheated oven. Bake for approximately 40 to 45 minutes. The goal is to achieve a golden crust on the potatoes and a beautifully roasted exterior on the pork. Rotate the pan halfway through the cooking time to ensure even browning across all ingredients, keeping a close eye on the potatoes so they do not become too dark.Look for Potatoes should be fork-tender and golden brown, while the pork develops a nice roasted color.Tip Use a heavy-bottomed roasting pan for better heat retention and more uniform cooking.
During this phase, check the progress of the potatoes halfway through. They should be beginning to soften and show signs of golden browning. The pork should be firming up and developing a pleasant aroma.
If the potatoes appear to be darkening too quickly, adjust their position or lower the rack slightly. The kitchen should be filled with the savory scent of roasted garlic and fresh herbs.
Resting and serving
- Finish and restRemove the pan from the oven when the internal temperature of the pork reaches 145°F (63°C). Transfer the pork loin to a cutting board and let it rest for at least 3 minutes before slicing. This resting period is critical for retaining the natural juices. Once rested, slice the pork into thick pieces and serve immediately alongside the crispy roasted potatoes.Look for The meat should be firm to the touch with clear juices when sliced.Safe temperature 145°F (63°C) internal temperature (steaks, chops and roasts)Tip Ensure the thermometer is inserted into the thickest part of the loin for an accurate reading.
Once removed from the oven, the pork should have a beautifully browned exterior. After the required resting time, the meat will be easier to slice and will retain its internal moisture. The potatoes should be tender on the inside and crispy on the outside. Before serving, verify the internal temperature one last time to ensure it has held steady at the safe serving point.
Common mistakes
A common mistake is failing to let the meat rest after roasting. Resting is non-negotiable, as it allows the internal juices to stabilize, ensuring the pork remains moist. Another error is overcrowding the pan, which prevents proper airflow and leads to steaming rather than roasting.
Ensure there is enough space between the potatoes so they can crisp up properly. Finally, avoid using an inaccurate thermometer, as this can lead to either undercooked or overcooked meat, significantly impacting the final texture.
How to tell it’s done
The pork is perfectly cooked when it reaches an internal temperature of 145°F (63°C). At this stage, the meat should be opaque and tender, with clear juices when sliced.
It is vital to use a meat thermometer inserted into the thickest part of the roast to verify this temperature accurately. Overcooking will cause the pork to become dry, so prioritize monitoring the temperature closely as the roast nears the end of the calculated cooking time.
- Steaks, chops and roasts: 145°F (63°C) in the thickest part, then a 3-minute rest
Up next · Part 3 of 3
2 variations · storage & make-ahead · 3 answers · printable card
Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)