Heidi's Marinated Roast Potato Recipe

Heidi's roast potato recipe uses an interesting mustard marinade to give these roasted potatoes an extra special kick! 

Dumping everything into a plastic baggie to mix and marinade the potatoes is quick and easy. If she has time, the longer she marinades the potatoes the better.

Prep Time

15 minutes + marinate time

Roast Time

1 hour

Total Time

1.25 hours + marinate time


Makes 4 servings


  • 4 large potatoes, cut into cubes, etc.
  • ½ cup olive oil
  • 4 tablespoons mustard
  • salt, pepper


  1. Preheat oven to 400°F. 
  2. Put the potatoes, olive oil, and mustard into a ziploc plastic baggie. Mix well. Let sit as long as possible - ½ hour to overnight (in fridge).
  3. Empty bag of potatoes into a large enough baking dish, so that potatoes cover bottom in a single layer. Sprinkle with salt and pepper. Stir.
  4. Bake, uncovered for about 45 minutes to 1 hour. Stir gently  after the first 35 minutes and then stir occasionally. Once nicely browned and tender, remove from oven and serve. 


  • Sprinkle with a Seasoning Salt, a Steak Spice, or your favorite seasoning.
  • One of my favorites is to use Montreal Steak Spice
  • This is a favorite to serve when I'm making Dijon Salmon, since the oven is at the same temperatures for both. A great combination.

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