From above, a shallow platter filled with golden chicken nestled among glossy baby potatoes, pale green leeks, fennel ribbons, and bright peas in a silky ivory sauce, finished with scattered tarragon leaves, lemon zest, cracked pepper, and a drizzle of olive oil.

Slow Cooker Chicken with Baby Potatoes, Leeks & Tarragon

Elegant French-inspired spring braise with potatoes, leeks, and herbs.

Category Main Course
Prep 25 minutes
Cook 360 minutes
Style French
Technique Slow Cooking
Diet Friendly Gluten-Free

Daily recipe · May 01, 2026

A little about this dish

This slow-cooker dish takes a French-inspired spring direction by pairing tender baby potatoes with leeks, fennel, white wine, Dijon, and a glossy herb finish. Instead of a predictable stew, it lands somewhere between a rustic braise and an elegant market-garden supper, with sweet peas and fresh tarragon added at the end for brightness, color, and a beautiful seasonal feel.

Ingredients (for 4)

  • Baby yukon gold or fingerling potatoes1 1/2 lbhalve if large
  • Bone-in skin-on chicken thighs8 pieces (about 2 1/2 lb)pat dry
  • Large leeks2use white and light green parts only, halve lengthwise and slice
  • Medium fennel bulb1thinly slice; reserve fronds
  • Medium shallots2thinly slice
  • Garlic cloves4 clovesmince
  • Dry white wine3/4 cup
  • Chicken stock3/4 cup
  • Crème fraîche1/2 cup
  • Dijon mustard1 1/2 tbsp
  • Frozen peas1 cup
  • Lemon1finely grate zest and juice to yield 1 tbsp juice
  • Fresh tarragon2 tbsp, plus extra for garnishchop; reserve extra leaves for garnish
  • Fresh chives2 tbspfinely slice
  • Unsalted butter2 tbsp
  • Olive oil1 tbsp
  • Kosher salt2 tsp, plus more to taste
  • Black pepper1 tsp, plus more to finish

Preparation

  1. Step 1 — 🧂🍗⚫
    Sprinkle the chicken thighs all over with 1 1/2 teaspoons kosher salt and 1 teaspoon black pepper.
  2. Step 2 — 🔥🍳🍗
    Heat a large skillet over medium-high heat. Add the olive oil, then sear the chicken skin-side down for 4 to 5 minutes until deeply golden. Flip and cook 1 minute more. Transfer to a plate; it does not need to be fully cooked yet.
  3. Step 3 — 🧈🥬🧄
    Lower the heat to medium. Add the unsalted butter, then cook the leeks, fennel, shallots, and garlic with a small pinch of salt for 4 to 5 minutes, stirring, until softened but not browned.
  4. Step 4 — 🍷🥄✨
    Pour in the dry white wine and scrape up the browned bits from the skillet. Let it simmer for 2 minutes.
  5. Step 5 — 🥔🥣🍯
    Add the potatoes and the softened leek-fennel mixture to the slow cooker. Pour in the chicken stock and stir in the Dijon mustard.
  6. Step 6 — 🐓🕒🍲
    Place the chicken thighs on top, skin-side up. Cover and cook on LOW for 5 1/2 to 6 hours, until the potatoes are tender and the chicken is cooked through.
  7. Step 7 — 🥄🍋🟢
    Move the chicken to a warm plate. Stir the crème fraîche, frozen peas, lemon zest, lemon juice, chopped tarragon, and chives into the slow cooker. Cover and cook on HIGH for 10 to 15 minutes, until the peas are bright and heated through.
  8. Step 8 — 👅🧂👌
    Taste the sauce and add more salt and black pepper if needed.
  9. Step 9 — 🔥🥵🍗
    If you want crispier skin, place the chicken under the broiler for 2 to 4 minutes until the skin is more golden and crisp.
  10. Step 10 — 🍽️🌿✨
    Spoon the potatoes, vegetables, and sauce into bowls or onto a platter. Top with the chicken and finish with extra tarragon leaves, reserved fennel fronds, cracked black pepper, and a tiny drizzle of olive oil.

A final fox tip

This dish feels very French because of the leeks, fennel, Dijon, wine, crème fraîche, and tarragon, but the slow cooker makes it weeknight-friendly. If you want a more luxurious version, add sautéed mushrooms with the leeks. For a lighter variation, use boneless skinless thighs and skip the broiling step. Kids can help stir the sauce at the end and scatter the herbs for the final Instagram-worthy finish.

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