Seared Ahi Tuna au Poivre with Shaved Fennel & White Peach Salade
I love the drama of a classic Parisian steak au poivre. But honestly? On a balmy California evening, heavy cream and beef feel like a wool sweater at the beach. The inspiration for this dish hit me during a trip to the Santa Monica farmers market. My friend David had these magnificent, bruise-me-if-you-look-at-me white peaches, and I had just picked up a stunning cut of ruby-red ahi. I thought, pourquoi pas? Let's give the tuna that signature crushed-peppercorn crust and swap the rich pan sauce for something bright. What makes this recipe so special to me is how it bridges my two worlds. You get the fierce, peppery bite of a French bistro staple, completely balanced by a juicy, sun-drenched salad of shaved fennel and sweet peaches. The vinaigrette—heavy on the shallots and Meyer lemon, naturally—ties it all together. Don't be precious with it. If peaches aren't in season, use nectarines or even persimmons in the fall. Just remember: get your pan smoking hot, sear the tuna for a minute per side tops, and pour yourself a chilled glass of skin-contact Chenin Blanc while you cook. Santé!
Featured Recipe
Seared Ahi Tuna au Poivre with Shaved Fennel & White Peach Salade
I love the drama of a classic Parisian steak au poivre, but on a balmy evening in California, heavy cream and beef just feel too heavy. Instead, we’re swapping the filet mignon for stunning, ruby-red ahi tuna and giving it that signature crushed-peppercorn crust. Paired with a juicy, sun-drenched salad of white peaches, fennel, and a Meyer lemon-shallot vinaigrette, this dish is a quick-seared sunset on a plate.
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Ingredients
- 2 steaks ahi tuna steaks(sushi-grade, about 6 oz each, 1-inch thick)
- 2 tbsp mixed peppercorns(coarsely crushed (a mix of black, pink, and green is lovely))
- 1 tsp kosher salt
- 4 tbsp olive oil(divided (1 tbsp for searing, 3 tbsp for dressing))
- 1 shallot(finely minced)
- 1 Meyer lemon(juiced and zested)
- 1 tsp Dijon mustard
- 1 fennel bulb(very thinly shaved)
- 2 white peaches(pitted and sliced into wedges)
- 1 avocado(halved and sliced)
- 1/4 cup fresh mint(torn)
- 1/4 cup fresh basil(torn)
- 1 pinch flaky sea salt(to finish)
Instructions
- 1
In a small bowl, whisk together 1 finely minced shallot, 1 tsp Dijon mustard, and the juice and zest of 1 Meyer lemon. Slowly whisk in 3 tbsp olive oil until perfectly emulsified. Let it sit so the sharp bite of the shallot melts beautifully into the citrus.
5 min
Tip: Letting the shallot sit in the acid (macerating) is my favorite trick to sweeten its flavor.
- 2
In a wide mixing bowl, gently toss the 1 very thinly shaved fennel bulb and 2 sliced white peaches with about half of your vinaigrette. We want them to just begin to soften and soak up that sunny lemon dressing. Set aside.
5 min
Tip: Use a mandoline for the fennel if you have one. You want it almost translucent so it’s delicate, not tough.
- 3
Pat the 2 ahi tuna steaks completely dry with paper towels. Season both sides evenly with 1 tsp kosher salt, then press the 2 tbsp coarsely crushed mixed peppercorns firmly into the flesh, ensuring a beautiful, even crust.
2 min
Tip: Don't be shy with the peppercorns. Press down hard so they adhere properly.
- 4
Heat the remaining 1 tbsp olive oil in a heavy skillet (cast iron is perfect here) over medium-high heat until shimmering. Carefully lay the tuna in the pan. Give it a quick, aggressive sear—exactly 60 to 90 seconds per side. We want a deeply toasted pepper crust but a cool, ruby-rare center. Transfer immediately to a cutting board.
3 min
Tip: Do not walk away! Tuna cooks in a flash. An overcooked piece of ahi is a minor tragedy.
- 5
Now, we compose! Slice the seared tuna against the grain into thick ribbons. Spread the dressed fennel and peaches across a large platter. Tuck slices of 1 sliced avocado throughout the salad. Drape the seared tuna ribbons over the top. Drizzle the entire platter with the remaining vinaigrette, scatter over the 1/4 cup torn fresh mint and 1/4 cup torn fresh basil, and finish with a generous pinch of 1 pinch flaky sea salt.
3 min
Tip: Composing rather than tossing keeps the avocado pristine and lets every ingredient shine like a jewel.
Chef's Notes
Pour a chilled, slightly funky skin-contact Pinot Gris or a crisp Rosé de Provence with this. The subtle tannins and stone fruit notes in a good orange wine will sing harmoniously with the fresh peaches and the spicy, peppery crust of the tuna. Also, if white peaches aren't at the market yet, sweet Santa Rosa plums work miracles here!
Marguerite Lavigne
French soul, California sun
I grew up in a small village outside Lyon, where my grandmother taught me that the best meals come from respecting your ingredients. After training at Le Cordon Bleu and spending years in Parisian kitchens, I moved to San Francisco and fell in love with California's farmers markets and wine country. Now I cook the food I wish my grandmother could taste—French technique with California abundance, where a perfect roast chicken might come with Meyer lemon and wild fennel instead of tarragon.