Memorial Day Southern Red Potato Salad with Mustard Vinaigrette

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A refreshing Southern-style red potato salad tossed in a tangy mustard vinaigrette perfect for Memorial Day gatherings. This southern-inspired salads ready in about 30 minutes pairs red potatoes, quartered, red onion, finely diced, celery stalks, diced into a side that holds its own next to almost any main — bright, balanced, and quick enough to slot into a weeknight plate. Each serving lands at about 220 calories and feeds 6, so it slots cleanly next to roasted proteins, grain bowls, or weeknight mains. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 15 min Serves 6 Southern cuisine 220 cal/serving
Plan a meal with the AI → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Instructions

  1. Step 1: Place 2 lbs quartered red potatoes in a large pot of salted water and bring to a boil over high heat. Cook for 12-15 minutes until potatoes are tender but not falling apart, then drain and cool slightly.
  2. Step 2: In a small bowl, whisk together 2 tbsp Dijon mustard, 3 tbsp apple cider vinegar, 1/4 cup olive oil, 1 tbsp honey, 1 tsp salt, and 1/2 tsp black pepper until emulsified to create the vinaigrette.
  3. Step 3: In a large bowl, combine the warm potatoes, 1/2 cup finely diced red onion, 2 diced celery stalks, and 1/4 cup chopped fresh parsley. Pour the vinaigrette over and gently toss until all ingredients are evenly coated.
  4. Step 4: Chill the salad in the refrigerator for at least 1 hour before serving to allow the flavors to meld.

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Knives & cutting boards → Shop all kitchen tools →

Frequently asked questions

How long does Memorial Day Southern Red Potato Salad with Mustard Vinaigrette take to make?

Total time is about 30 minutes (15 min prep + 15 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Memorial Day Southern Red Potato Salad with Mustard Vinaigrette?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep red potatoes, quartered from drying out.

Can I substitute ingredients in Memorial Day Southern Red Potato Salad with Mustard Vinaigrette?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Memorial Day Southern Red Potato Salad with Mustard Vinaigrette for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Memorial Day Southern Red Potato Salad with Mustard Vinaigrette?

Southern salads like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.