• 4 boneless, skinless chicken breast halves (about 1-1/2 lbs)
• 1/2 cup all-purpose flour
• Salt and freshly ground black pepper, to taste
• 1-1/2 to 2 teaspoons Espelette pepper, divided (see notes for substitutions)
• 1 tablespoon unsalted butter
• 3 tablespoons olive oil, divided
• 1/2 cup yellow onion, finely chopped
• 3 cloves garlic, very finely chopped or minced
• 1 medium green bell pepper, cored, seeded and cut into 1/4-inch strips
• 1 medium red bell pepper, cored, seeded and cut into 1/4-inch strips
• 1 medium yellow or orange bell pepper, cored, seeded and cut into 1/4-inch strips
• 1 cup diced tomatoes, undrained (canned preferred for consistency)
• 1/2 cup low-sodium chicken broth, divided
• 1 bay leaf
• 2 sprigs fresh thyme

1. Prepare the Chicken: Place the chicken breasts between two sheets of plastic wrap and gently pound them to an even thickness of 1/2-inch. This ensures even cooking and tenderness. Pat them dry thoroughly.
2. Season the Flour: On a shallow plate or a sheet of wax paper, combine the 1/2 cup flour, 1 teaspoon salt, a generous few grinds of fresh black pepper, and 1/2 teaspoon of the Espelette pepper. Mix well to create a fragrant seasoning blend.
3. Sear the Chicken: Heat the butter along with 1 tablespoon of the olive oil in a large, heavy-bottomed skillet or Dutch oven over medium-high heat. Once the butter is melted and sizzling, dredge each piece of chicken in the seasoned flour, shaking off any excess. Carefully add the floured chicken to the hot pan, ensuring not to overcrowd it (cook in batches if necessary).
4. Brown and Set Aside: Cook the chicken for about 1-1/2 to 2 minutes per side, until it achieves a pale golden color. The goal here is to develop some flavor and a light crust, not to cook it through. Transfer the seared chicken to a clean plate and set aside.
5. Sauté Aromatics: Add the remaining 2 tablespoons of olive oil to the same pan, reducing the heat to medium. Add the finely chopped onion and sauté gently until it becomes soft and translucent, which should take about 3 to 4 minutes. Next, add the minced garlic and continue to sauté for another 1 to 2 minutes, until fragrant. Be careful not to let the garlic brown, as this can make it bitter.
6. Cook the Bell Peppers: Introduce the colorful bell pepper strips to the pan. Continue cooking, stirring frequently, until the peppers are crisp-tender, approximately 3 to 4 minutes. Stir in 1 teaspoon of the Espelette pepper, then season the vegetable mixture generously to taste with additional salt and freshly ground black pepper. Finally, add the undrained diced tomatoes and 1/4 cup of the low-sodium chicken broth, stirring to combine.
7. Simmer the Pipérade: Add the bay leaf and fresh thyme sprigs to the pepper mixture. Cover the pan and let the pipérade gently simmer, stirring occasionally, for 5 to 7 minutes, or until the bell peppers are very tender and the flavors have melded beautifully. At this point, taste the sauce and adjust the seasoning, adding more Espelette pepper if you desire a bit more warmth.
8. Finish Cooking the Chicken: Stir in the remaining 1/4 cup of chicken broth into the simmering pipérade. Return the seared chicken breasts to the pan, nestling each piece into the rich pepper mixture. Cover the pan once more and cook for an additional 3 to 4 minutes, turning the chicken once, until it is thoroughly cooked through and tender (internal temperature should reach 165°F or 74°C). Before serving, carefully discard the bay leaf and thyme sprigs.
9. Serve with Style: To serve this delightful Basque-Style Chicken, arrange a generous bed of the flavorful pipérade pepper mixture on each plate. Top with a succulent piece of chicken, and accompany with a portion of fluffy steamed white rice. Garnish with a fresh sprig of thyme for an appealing presentation.

About Espelette Pepper (Piment d’Espelette): The Soul of Basque Cuisine

Piment d’Espelette is a truly special ingredient that lends Basque-Style Chicken its distinctive flavor profile. Hailing from the picturesque Basque region of France, specifically around the commune of Espelette, this unique chili pepper boasts a rich, sweet red pepper flavor accompanied by a mild, pleasant heat. Unlike cayenne or many other chilis, Espelette pepper offers a nuanced warmth that enhances rather than overwhelms the other ingredients. Its production is strictly regulated by the French government (Appellation d’Origine Protégée, or AOP), ensuring its authenticity and quality.

We highly recommend seeking out authentic Piment d’Espelette for the most genuine taste experience. However, if it’s unavailable, you can successfully substitute it with a good quality sweet paprika (use about half the quantity, as paprika can sometimes be stronger) combined with just a pinch of cayenne pepper for that subtle kick. Start with a smaller amount and add more to taste.

Ingredient Quality Matters

For the best flavor, use fresh, vibrant bell peppers and high-quality diced tomatoes. Opting for low-sodium chicken broth allows you to control the overall saltiness of the dish more effectively. Fresh thyme sprigs will infuse a much richer aroma than dried thyme.

Achieving Evenly Cooked Chicken

Pounding the chicken breasts to an even 1/2-inch thickness is a crucial step. This not only ensures they cook uniformly but also helps them remain tender and juicy. Overcooked chicken breasts can become dry and stringy, so keep an eye on cooking times, especially in the final simmering stage.

Don’t Overcrowd Your Pan

When searing the chicken and later sautéing the vegetables, resist the urge to overcrowd the skillet. Cooking in batches allows ingredients to properly brown and caramelize, developing deeper flavors. Overcrowding can lead to steaming, resulting in less flavorful and less appealing textures.

Shopping Resources: Finding Authentic Espelette Pepper

If Piment d’Espelette is not readily available in your local specialty food stores or gourmet supermarkets, you’ll often find it online. Reputable online retailers like Amazon or dedicated gourmet food suppliers such as Gourmet Delights are excellent sources. Investing in this spice is worthwhile for any enthusiast of French or Mediterranean cuisine.