This is a creamy chicken salad built around fresh tarragon, Dijon mustard, and a mayo-yogurt dressing that comes together in about 20 minutes — less if your chicken is already cooked. It works as a quick lunch, a light dinner, or a sandwich filling, and it genuinely tastes better than anything you’d pull from a deli case.
Before you start
The one technique worth getting right is how you dice the chicken. Aim for pieces around ¾ inch — small enough to get dressing in every bite, large enough that the salad has some texture rather than turning into a paste. If you’re poaching chicken from scratch, pull it at 165°F internal temperature and let it rest for five minutes before cutting; slicing too soon pushes out the moisture you want to keep. Everything else — whisking the dressing, folding it in — is straightforward.
Substitutions that actually work
- Fresh tarragon: This is the one ingredient worth tracking down at a decent grocery store. Dried tarragon loses most of its character and will make the salad taste flat. If you genuinely can’t find fresh French tarragon, a small amount of fresh chervil or a mix of fresh basil and a few fennel fronds gets you closer than dried.
- Greek yogurt: Full-fat sour cream works in the same quantity and gives a slightly richer result. Low-fat yogurt tends to make the dressing watery — skip it.
- Red grapes: Firm, ripe grapes are important here for texture. If yours are soft, leave them out rather than adding mush to the salad.
Mistakes to avoid
- Overdressing the salad: Add the dressing in two stages — about two-thirds first, fold it in, then add more only if it looks dry. It’s easy to overdo it and end up with a soupy result.
- Chopping the tarragon too far ahead: Fresh tarragon oxidizes quickly once cut. Chop it right before you fold it in, not while you’re prepping other ingredients.
- Using warm chicken: Folding dressing into warm chicken causes the mayo to break and go greasy. Make sure the chicken is fully cooled to room temperature at minimum, cold from the fridge is even better.
- Cutting the celery too thick: Chunky celery pieces dominate every bite. Finely chopped — about ¼ inch or less — keeps it as background crunch rather than the main event.
- Skipping the taste-and-adjust step: The lemon juice and salt levels matter a lot here. Taste after folding everything together and add a small squeeze more lemon if the dressing tastes flat.
Make-ahead notes
This salad keeps well in an airtight container in the fridge for up to three days. The flavors actually improve after a few hours, so making it the night before a busy weeknight works well — skip the optional 10-15 minute chill and just refrigerate overnight. Give it a quick stir before serving since the dressing can settle. Do not freeze it; mayonnaise-based dressings separate when thawed and the texture of the grapes and celery won’t survive. There’s no reheating involved — serve it cold straight from the fridge, and skip the garnish if you were planning one, it’s not worth the extra dish.

French Tarragon Chicken Salad
Equipment
- Large sauté pan
- Sharp knife
- Cutting board
- Mixing bowls
- Whisk
- Tongs
Ingredients
For the Salad:
- 2 cups cooked chicken breast, diced preferably roasted or poached and cooled
- ½ cup celery, finely chopped choose firm, crisp stalks
- ½ cup red seedless grapes, halved choose firm, ripe grapes for sweetness and color
- 2 tablespoons fresh tarragon, finely chopped French tarragon is preferred for its delicate flavor
For the Dressing:
- ½ cup mayonnaise use a high-quality brand for richness
- 2 tablespoons Greek yogurt adds a light tangy contrast
- 1 tablespoon Dijon mustard classic French style, smooth and pungent
- 1 tablespoon fresh lemon juice adds brightness; freshly squeezed preferred
- ¼ teaspoon kosher salt adjust to taste
- â…› teaspoon freshly ground black pepper fine to medium grind for delicate seasoning
Instructions
- Prepare the Chicken (if not already cooked): In a large sauté pan, bring lightly salted water to a simmer (around 180°F / 82°C). Add chicken breasts and poach gently for 12 to 15 minutes until cooked through and opaque. Let cool slightly before dicing into bite-sized cubes.
- Mix the Dressing: In a medium bowl, whisk together the mayonnaise, Greek yogurt, Dijon mustard, lemon juice, salt, and black pepper until smooth and emulsified.
- Assemble the Salad: In a large mixing bowl, combine the diced chicken, chopped celery, halved grapes, and chopped tarragon. Gently fold in the prepared dressing until everything is evenly coated. Taste and adjust seasoning if needed.
- Chill (optional): For enhanced flavor, cover and refrigerate the salad for 10–15 minutes before serving to let the flavors meld.
Notes
- Add chopped toasted almonds or walnuts for a nutty crunch.
- Substitute crème fraîche for Greek yogurt for a richer, more decadent version.
- Swap grapes with sliced apples or dried cranberries for seasonal variation.
Nutrition
Frequently asked questions
Can I use rotisserie chicken instead of poaching my own?
Yes, and it’s the fastest option. Pull the breast meat, dice it, and make sure it’s cold before you add the dressing. Rotisserie chicken tends to be well-seasoned already, so taste the finished salad before adding any extra salt.
How do I know if I’m using French tarragon versus Russian tarragon?
Pinch a leaf and smell it — French tarragon has a clear, sweet anise scent. Russian tarragon smells faintly grassy with almost no anise character, and it won’t give you the flavor this recipe depends on. Most grocery stores labeled simply ‘fresh tarragon’ carry the French variety, but it’s worth a quick sniff to confirm.
Can I make this without the grapes for a less sweet version?
Yes, just leave them out. The salad is still well-balanced without them since the lemon juice and Dijon keep the dressing from tasting heavy. If you want to keep some contrast, a small handful of finely diced cucumber adds crunch without sweetness.
If you liked this one
- Classic Southern Ham Salad
- Quick Chicken Noodle Soup
- Easy Classic French Crêpes
- Perfect Bistro French Fries
