This is a bitter-greens salad built on radicchio and Belgian endive, dressed with a walnut oil vinaigrette and finished with gorgonzola and toasted walnuts. It comes together in 20 minutes with no cooking required. That makes it a genuinely useful option when you need something fast, impressive, and easy to portion out across several days.
Before you start
Two things will make or break this salad. First, toast the walnuts even if the bag says theyโre already roasted โ a dry skillet over medium heat for 3 to 4 minutes deepens their flavor considerably and keeps them from tasting flat against the bitter greens. Second, whisk the vinaigrette until itโs fully emulsified before it touches the leaves. Walnut oil and olive oil are both fairly light, so they need the Dijon mustard to act as a binder; keep whisking until the dressing looks uniform and slightly thickened, not separated. A loose dressing slides off radicchio and endive instead of coating them.
About the ingredients
- Walnut oil: It goes rancid faster than olive oil. Smell it before you use it โ it should be nutty, not bitter or paint-like. Store it in the fridge after opening.
- Radicchio: Heads vary a lot in bitterness. If yours tastes very sharp raw, soak the sliced leaves in cold water for 10 minutes and spin them dry โ it takes the edge off without losing the crunch.
- Belgian endive: Cut it at the last minute. The cut edges brown quickly once exposed to air.
- Gorgonzola: Dolce (younger, creamier) is milder; piccante (aged) is sharper. Either works, but dolce crumbles more cleanly over the salad. A firm blue cheese like Roquefort or Maytag blue is a straightforward substitute.
If something goes sideways
- The dressing tastes flat: Add a small pinch of salt and taste again โ walnut oil can mute acidity. If it still seems dull, add a few extra drops of red wine vinegar, not more oil.
- The salad tastes overwhelmingly bitter: The radicchio-to-endive ratio matters. Endive is milder, so lean heavier on it. Adding a small handful of arugula or baby spinach also softens the overall bitterness without changing the character of the dish.
- The walnuts have gone soft: They absorb moisture from the dressing fast. If youโre serving in batches over a few days, keep the walnuts separate and add them per portion at serving time.
- The gorgonzola is clumping instead of crumbling: Itโs probably too warm. Pop it in the freezer for 5 minutes and try again โ cold cheese crumbles cleanly.
- The vinaigrette has broken and looks oily: Add one more small squeeze of Dijon and whisk vigorously, or transfer to a jar and shake hard for 30 seconds. It will re-emulsify.
Keeping it fresh
Dress it at the table โ a pre-dressed salad goes limp fast. Store the undressed greens and the vinaigrette in separate airtight containers in the fridge; the greens stay crisp for up to 3 days and the dressing keeps for up to a week. Keep the toasted walnuts at room temperature in a small sealed bag or jar โ refrigerating them doesnโt hurt them, but they can pick up fridge odors over time. The gorgonzola can be pre-crumbled and stored in a small container in the fridge for up to 3 days. When youโre ready to serve a portion, pull out what you need, shake the dressing, pour it over, and add the walnuts and cheese right before eating. That 2-minute assembly is what keeps this salad worth eating on day three.
Radicchio and Endive Salad with Walnut Vinaigrette
Ingredients
Salad Ingredients
- 1 head organic radicchio cored and thinly sliced
- 2 heads Belgian endive trimmed and sliced
- ยฝ cup walnut pieces toasted
- ยผ cup crumbled gorgonzola cheese or other blue cheese
- ยผ cup fresh parsley chopped
Walnut Vinaigrette
- ยผ cup walnut oil
- 2 tablespoons olive oil extra virgin
- 2 tablespoons red wine vinegar
- 1 teaspoon Dijon mustard
- 1 clove garlic minced
- 1 pinch Salt to taste
- 1 pinch ground black pepper freshly cracked
Instructions
- In a large mixing bowl, gently toss together the radicchio, Belgian endive, and toasted walnut pieces, taking care to maintain the integrity of the sliced leaves for a beautiful visual impact.
- In a smaller bowl, whisk together the walnut oil, extra virgin olive oil, red wine vinegar, Dijon mustard, and minced garlic until emulsified. Season with salt and freshly cracked black pepper to taste, adjusting the acidity and saltiness to your preference.
- Pour the walnut vinaigrette over the salad mixture and gently fold until evenly dressed. Be mindful to not bruise the leaves as you incorporate the vinaigrette.
- Arrange the salad on individual plates, sprinkling each with crumbled gorgonzola cheese and a scattering of fresh parsley for a burst of color and freshness.
Notes
Nutrition
FAQ
Can I make the walnut vinaigrette ahead of time?
Yes โ it keeps well in the fridge for up to a week in a sealed jar. Give it a good shake or re-whisk before using, since the oils will separate as it sits.
Is there a substitute for walnut oil if I canโt find it?
Use all extra virgin olive oil in its place โ the dressing will still work. Youโll lose some of the nutty depth, but the toasted walnuts in the salad itself carry a lot of that flavor anyway.
Can I use a different green instead of radicchio or endive?
Radicchio can be swapped for Treviso (a longer, slightly milder variety) or even thinly sliced red cabbage in a pinch. For endive, chicory or frisรฉe are the closest matches in texture and bitterness.
How do I keep the endive from browning if Iโm prepping it in advance?
Slice it as close to serving time as possible โ thatโs the most reliable fix. If you need to prep it ahead, toss the cut pieces lightly with a few drops of lemon juice, which slows oxidation without noticeably affecting the flavor.
Can I turn this into a more filling meal?
Add a protein that doesnโt require cooking โ sliced prosciutto, canned white beans, or hard-boiled eggs all fit the flavor profile without overwhelming the greens. Keep the portions modest so the dressing still coats everything evenly.