How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Mustard Seed Potato Salad?

You need 10 ingredients. The key ingredients include: 2 lbs fingerling potatoes (you can also use red bliss or other heirloom potatoes), 1 tablespoon roasted garlic (1 head rubbed with olive oil then baked at 350 degrees for 45 minutes), 2 1/2 teaspoons Dijon mustard, 1/2 cup red wine vinegar, and more.

Is Mustard Seed Potato Salad suitable as salads?

Yes, Mustard Seed Potato Salad falls under the Salads category and is a great choice for this type of meal.

How do I store leftover Mustard Seed Potato Salad?

Keep refrigerated in an airtight container and enjoy within 1–2 days for the best freshness. Best served cold — no reheating needed.

Mustard Seed Potato Salad Recipe

Name: Mustard Seed Potato Salad
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 2 lbs fingerling potatoes (you can also use red bliss or other heirloom potatoes); 1 tablespoon roasted garlic (1 head rubbed with olive oil then baked at 350 degrees for 45 minutes); 2 1/2 teaspoons Dijon mustard; 1/2 cup red wine vinegar; 1 1/2 cups olive oil; 1 tablespoon yellow mustard seeds; salt and pepper; 2 medium red onions, sliced thin; 1/3 cup chopped fresh herb (parsley, tarragon, and thyme); 2 bunches watercress

Fresh, crisp and full of flavor — this Mustard Seed Potato Salad is a must-try. Made with potatoes, garlic, mustard and red wine vinegar. Easy step-by-s…

This Mustard Seed Potato Salad relies on simple, everyday ingredients such as dijon mustard, red wine vinegar, olive oil and yellow mustard seeds. It comes together quickly and makes 4 servings, at about 1002 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Salads

1002

kcal

Calories

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

No specific allergen information. Please check the ingredient list for possible allergens.

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Mustard Seed Potato Salad

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions