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Creamy Mustard Roasted Potatoes Recipe

Creamy Mustard Roasted Potatoes feature golden baby potatoes roasted until crispy, then smothered in a rich tangy mustard cream sauce with fresh dill. Perfect comforting side dish blending roasted potato texture with decadent savory sauce for winter dinners or holiday meals.

Ingredients

Scale
  • Roasted Potatoes:
  • 3 lbs baby potatoes (mixed yellow/red skins)
  • 3 tbsp extra virgin olive oil
  • 1½ tsp kosher salt
  • ½ tsp black pepper
  • Mustard Cream Sauce:
  • 1 tbsp unsalted butter
  • 1 tbsp olive oil
  • 1 shallot, finely diced
  • 2 garlic cloves, minced
  • 1 cup chicken or vegetable broth
  • 2 tbsp Dijon mustard
  • 1 tbsp grainy mustard
  • 1 cup heavy cream
  • 1 tbsp cornstarch + 1 tbsp water (slurry)
  • 1 tbsp fresh lemon juice
  • ¼ cup chopped fresh dill
  • Salt and pepper to taste

Instructions

  • 1. Preheat oven to 400°F. Halve larger baby potatoes. Toss with olive oil, salt, and pepper on parchment-lined baking sheet. Roast 35-40 minutes until golden and tender, flipping halfway.
  • 2. While potatoes roast, make sauce: Heat butter and olive oil in skillet over medium. Sauté shallot 3-4 minutes until soft. Add garlic; cook 1 minute.
  • 3. Add broth, both mustards, ½ tsp salt, ¼ tsp pepper. Simmer 5 minutes until reduced by third. Stir in cream; simmer. Whisk in cornstarch slurry; boil 1 minute until thickened. Add lemon juice and dill; season to taste.
  • 4. Layer potatoes and sauce in serving bowl, sprinkling dill between layers. Serve warm.

Notes

  • Baby potatoes hold shape best; larger ones need parboiling first.
  • Use quality mustards Dijon for smoothness, grainy for texture.
  • Make-ahead: Roast potatoes day before; reheat sauce gently.
  • Vegetarian/vegan: Use vegetable broth and coconut cream substitute.
  • Leftovers keep 3 days refrigerated; reheat with splash of cream.

Nutrition

Keywords: creamy mustard roasted potatoes, mustard cream sauce potatoes, roasted baby potatoes