Roasted Potato Salad

The smell of roasting potatoes always pulls me into the kitchen, no matter what else I had planned. I first made this salad for a last minute backyard gathering when a traditional mayonnaise based potato salad felt too heavy for a warm summer evening. Something about those crispy edges catching the tangy mustard dressing just clicked.

My sister in law actually texted me the next morning demanding this recipe, which is how I know it is a keeper. She served it at her own summer barbecue the following weekend and reported that even the kids went back for seconds. There is something honest and comforting about warm potatoes mixed with crisp radishes and fresh herbs.

Ingredients

• 800 g baby potatoes: Halving them creates more crispy surface area for the dressing to cling to
• 1 small red onion: Thinly sliced raw onion adds a bite that mellows beautifully in the mustard dressing
• 2 stalks celery: The crunch provides perfect contrast against tender roasted potatoes
• 4 radishes: These add a fresh peppery kick that cuts through the richness
• Fresh chives and parsley: Do not skip these, they make the whole dish taste bright and alive
• 4 tbsp olive oil: Divided use gives you roasted potatoes plus a luscious dressing
• 2 tbsp Dijon mustard: This is what transforms a ordinary salad into something memorable
• 1 tbsp white wine vinegar: Adds just enough acidity to wake up all the flavors
• 1 tbsp lemon juice: Fresh lemon brightness ties everything together
• 1 clove garlic: Minced raw garlic gives a gentle hum underneath all those fresh herbs

Instructions

Roast the potatoes until golden:

Toss halved baby potatoes with 2 tablespoons olive oil and generous pinches of salt and pepper on a baking tray. Roast at 220°C for 30 to 35 minutes, turning once halfway through, until they have crispy golden edges and feel tender when pierced.

Let them cool slightly:

Set the roasted potatoes aside for about 10 minutes so they are warm rather than piping hot when you dress them. This helps them hold their texture and absorb the vinaigrette without falling apart.

Whisk together the dressing:

While the potatoes roast, combine the remaining olive oil, Dijon mustard, white wine vinegar, lemon juice, minced garlic, and another pinch of salt and pepper. Whisk until the mixture emulsifies and thickens slightly.

Combine everything:

Add the sliced red onion, celery, radishes, chopped chives, and parsley to the bowl with warm potatoes. Pour the dressing over the top and fold gently until every potato is coated.

Taste and adjust:

This is the moment that matters. Grab a fork and taste, then add more salt, pepper, or a splash of vinegar if needed. Serve warm or let it come to room temperature for a picnic.

Save

This recipe has become my go to for every summer gathering, from casual weeknight dinners to big family reunions. Watching friends reach past fancy dishes to scoop another portion of this simple potato salad makes me smile every single time.

Making It Ahead

You can roast the potatoes and chop all the vegetables up to a day in advance, just store everything separately in the refrigerator. Whisk the dressing right before serving and toss it all together while the potatoes are still slightly warm.

Serving Suggestions

This salad pairs beautifully with grilled chicken, fish, or portobello mushrooms. It is also hearty enough to stand alone as a light lunch with some crusty bread and a simple green salad on the side.

Easy Variations

Once you have the basic method down, this recipe becomes a canvas for whatever looks fresh at the market or sits in your crisper drawer. I have swapped in roasted sweet potatoes in autumn and used dill instead of parsley when that is what I had on hand.

• Add crumbled bacon or smoked salmon if you want to make it more substantial
• Stir in some Greek yogurt for a creamier version that still feels light
• Try different fresh herbs like tarragon, basil, or cilantro based on what you love

Save

There is something deeply satisfying about a dish that comes together simply yet tastes like it took all day to plan. I hope this roasted potato salad finds its way into your regular rotation.

Common Questions

→ Can I make this ahead of time?

Yes, prepare up to 24 hours ahead. Store covered in the refrigerator and bring to room temperature before serving. The potatoes absorb the dressing beautifully overnight.

→ What potatoes work best?

Baby potatoes or fingerlings are ideal because they hold their shape during roasting. Yukon Gold or red potatoes cut into uniform chunks work perfectly too.

→ Can I serve this warm?

Absolutely. This tastes wonderful warm, at room temperature, or chilled. The warm potatoes soak up the dressing particularly well when tossed immediately after roasting.

→ How can I add protein?

Try crispy bacon pieces, smoked salmon flakes, or diced hard-boiled eggs. Grilled chicken or shrimp also pair nicely for a complete meal.

→ What can I substitute for the mustard?

If avoiding mustard, use an extra tablespoon of vinegar with a teaspoon of honey or maple syrup for balance. A touch of Greek yogurt can add creaminess instead.