A Sweet and Savory Sunday Roast Just Like Grandma Made
Some recipes don’t need fancy ingredients to be special. They just need time, a warm oven, and a little love.
This glazed pork loin is one of those recipes my grandmother made when she wanted something simple but satisfying. It used pantry staples — mustard, brown sugar, a few seasonings — and somehow turned them into something that tasted like it took all day.
As it roasted, the kitchen would fill with the smell of sweet brown sugar caramelizing over savory mustard, and the potatoes would soak up all those flavorful drippings. The pork always came out tender and juicy, never dry, and there was plenty to slice for sandwiches the next day.
It’s an easy, dependable meal — perfect for Sunday dinner or any night you want something comforting without a lot of fuss.
Ingredients:
salt and pepper to taste
1/4 tsp. garlic powder
1/4 tsp. onion powder
4 Tbsp. whole grain mustard, or spicy mustard
2/3 c. brown sugar
4 cut up sweet potatoes or regular potatoes
Directions:
Preheat oven to 400°F. A roasting pan or large cast iron skillet
Season the pork loin generously with salt, pepper, garlic powder, and onion powder on all sides.
Place the pork loin in a roasting pan or large cast iron skillet. Arrange the cut potatoes around the roast in a single layer.
Roast uncovered for 30 minutes.
Remove the pork from the oven. Brush or rub the mustard evenly over all visible sides of the roast. Sprinkle the brown sugar over the mustard and gently press it in so it adheres.
Reduce the oven temperature to 375°F.
Return the pork to the oven and continue roasting for approximately 20–25 minutes per pound, or until the internal temperature reaches 145–150°F for juicy pork (use a meat thermometer inserted into the thickest part).
Remove from oven and tent loosely with foil or a lid. Let rest for 10–15 minutes before slicing. This helps the juices redistribute and keeps the meat tender.
Slice and serve with the roasted potatoes.
Tips for the Best Pork Loin:
• Use a meat thermometer — this prevents overcooking.
• Remove the roast at 145–150°F; it will continue cooking as it rests.
• Let it rest before slicing to keep it juicy.
• If potatoes brown too quickly, turn them halfway through cooking.
• For extra caramelization, broil for 2–3 minutes at the end (watch carefully).
Variations & Substitutions:
Honey Mustard Version:
Replace half the brown sugar with honey.
Maple Glaze:
Use maple syrup instead of brown sugar for deeper sweetness.
Spicy Kick:
Add 1/2 teaspoon red pepper flakes to the glaze.
Garlic Lover’s Version:
Add 2–3 cloves minced garlic to the mustard mixture.
Use Carrots or Onions:
Add carrots or thick onion wedges to the roasting pan for extra flavor.
Serving Suggestions:
This glazed pork loin pairs beautifully with:
- Creamy Mashed Potatoes
- Old-Fashioned Scalloped Potatoes
- Creamy Coleslaw
- Buttery Yeast Dinner Rolls
- Steamed green beans with butter
- Simple garden salad
Leftover pork makes wonderful sandwiches the next day on fresh rolls.
How to Store & Reheat:
Refrigerate:
Store sliced pork in an airtight container for up to 4 days.
Freeze:
Wrap tightly and freeze for up to 2 months.
Reheat in Oven:
Place slices in a baking dish with a splash of broth. Cover with foil and heat at 325°F until warmed through.
Microwave:
Heat in short intervals, covered, to prevent drying.
Frequently Asked Questions:
What temperature should pork loin be cooked to?
145°F is the recommended safe internal temperature for tender, juicy pork.
Can I prepare this ahead of time?
Yes. Season and refrigerate the pork up to 24 hours before roasting.
Why did my pork turn out dry?
It was likely overcooked. Use a thermometer for best results.
Can I use pork tenderloin instead?
Yes, but reduce cooking time significantly, as tenderloin is smaller and cooks faster.






