This easy-grilled fingerling potatoes recipe is packed with flavor! The potatoes are lightly charred on the grill and drizzled with a creamy tarragon vinaigrette that’s tangy, herby, and smooth. Perfect as a side dish for any summer meal!
Ingredients Needed:
- 1/4 cup white wine vinegar
- Water, as needed
- 1 tablespoon chopped shallot
- 1 tablespoon mustard
- 1 tablespoon mayonnaise
- 2 tablespoons chopped fresh tarragon leaves, plus leaves for garnish
- 1/2 cup canola oil, plus more as needed
- Salt and freshly cracked black pepper
- 12 fingerling potatoes, par-boiled and halved
How To Make Grilled Fingerling Potatoes with Creamy Tarragon Vinaigrette?
- Preheat the grill: Heat your grill to medium heat.
- Make the vinaigrette: Blend the vinegar, a splash of water, shallots, mustard, mayonnaise, and tarragon until smooth. Slowly drizzle in the oil while blending until creamy. Season with salt and black pepper.
- Prepare the potatoes: Brush the potatoes with canola oil and season with salt and black pepper.
- Grill the potatoes: Place them cut-side down on the grill and cook until golden. Flip and grill until fully tender.
- Serve: Transfer to a platter, drizzle with the vinaigrette, and garnish with fresh tarragon. Enjoy!

Recipe Tips:
- Par-boil the potatoes correctly: Boil the fingerling potatoes just until they are fork-tender but not too soft. This helps them cook evenly on the grill without falling apart.
- Blend the vinaigrette slowly: When making the tarragon vinaigrette, add the oil slowly while blending. This makes the dressing smooth and creamy instead of separating.
- Oil the grill grates: To prevent the potatoes from sticking, lightly oil the grill grates before cooking. This also helps create beautiful grill marks.
- Grill cut-side down first: Always place the potatoes cut-side down first to get a nice golden crust before flipping. This adds flavor and a crisp texture.
- Drizzle the vinaigrette while the potatoes are warm: Pour the vinaigrette over the potatoes as soon as they come off the grill. This helps them absorb the flavors better and makes them extra delicious.
How To Store & Reheat Leftovers?
- Refrigerate: Let the leftover grilled potatoes cool to room temperature. Then, store them in an airtight container in the fridge for up to 3 days.
- Reheat: Heat a skillet over medium heat and add a little oil. Cook the potatoes for 3-5 minutes, stirring occasionally, until heated and crispy.
Nutrition Facts:
- Calories: 220 kcal
- Total Fat: 18g
- Saturated Fat: 2g
- Cholesterol: 0mg
- Sodium: 150mg
- Potassium: 400mg
- Total Carbohydrate: 15g
- Dietary Fiber: 2g
- Sugars: 1g
- Protein: 2g
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