Easy Crock-Pot Peanut Chicken

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Some slow cooker recipes are all about convenience. You add everything in the morning, leave it alone for several hours and return to a warm dinner that is practically ready to serve.

This peanut chicken is certainly easy, but it does not taste like a meal made simply to save time.

Tender chicken thighs cook gently in a savoury sauce made with soy sauce, mirin, garlic and a little heat. Toward the end of cooking, creamy peanut butter brings everything together, while red pepper adds colour, sweetness and just enough texture to keep the dish feeling fresh.

It is warm, comforting and full of flavour, without requiring an expensive cut of meat or a long list of specialty ingredients. Served over rice or noodles, it makes a generous family dinner with very little hands-on preparation.

A more affordable take on peanut beef

Peanut sauces are often paired with beef, but chicken thighs are a particularly practical alternative when grocery prices are high.

They are usually less expensive than many cuts of beef and are naturally well suited to the slow cooker. Their slightly higher fat content helps them remain tender during the long cooking time, while their mild flavour allows the peanut sauce to take centre stage.

For the most economical version, you can use bone-in, skin-on chicken thighs—often one of the least expensive packages in the meat aisle. Boneless, skinless thighs will also work and require a little less preparation at the table.

Why add the peanut butter at the end?

It may be tempting to stir the peanut butter into the slow cooker at the very beginning, but adding it toward the end gives the sauce a smoother, creamier texture.

Natural peanut butter can separate when heated for several hours. Waiting until the chicken is cooked allows it to blend more evenly into the warm cooking liquid without becoming oily or grainy.

The cornstarch slurry is added at the same time to gently thicken the sauce so that it coats the chicken and rice rather than pooling at the bottom of the bowl.

An optional step for deeper flavour

This recipe can be prepared by placing the ingredients directly into the slow cooker, but browning the chicken first is well worth the extra few minutes when time allows.

Searing the thighs skin-side down develops a deeper, roasted flavour. Adding the soy sauce, mirin, garlic and seasonings directly to the hot skillet then releases the browned bits from the bottom of the pan and creates a slightly caramelized base for the sauce.

The skin will soften again in the moist environment of the slow cooker. You can remove it before serving or place the cooked thighs under the broiler for a few minutes to crisp it again.

What’s special about this recipe?

  • It uses affordable chicken thighs instead of a more expensive cut of beef.
  • Most of the cooking happens unattended in the slow cooker.
  • Mirin adds a gentle sweetness without the need for additional sugar.
  • The optional browning step creates a deeper, slightly caramelized flavour.
  • The red pepper is added near the end so that it remains colourful and does not become overly soft.
  • The sauce is creamy and comforting but made mostly with practical pantry ingredients.

Slow Cooker Peanut Chicken with Peppers

Tender slow-cooked chicken thighs in a creamy peanut sauce with soy sauce, mirin, garlic and red pepper. Serve it over rice or noodles for an easy and affordable family dinner.
Prep Time 20 minutes
Cook Time 5 hours
Total Time 5 hours 20 minutes
Servings: 6 people
Course: Main Course
Cuisine: Chinese

Ingredients
  

For the chicken
  • 2 lb chicken thighs bone-in and skin-on or boneless and skinless
  • Black pepper to taste
  • 3 garlic cloves finely minced
  • ¼ tsp red pepper flakes or more to taste
  • ¼ cup educed-sodium soy sauce
  • 3 tbsp mirin
  • ½ cup reduced-sodium chicken broth
To finish the sauce
  • cup natural creamy peanut butter
  • 2 tbsp cornstarch
  • 2 tbsp cold water
  • 1 red bell pepper thinly sliced
For serving
  • 1 green onions thinly sliced
  • cup roasted peanuts roughly chopped
  • Fresh cilantro optional
  • Cooked rice or noodles

Equipment

  • 5- to 6-quart slow cooker
  • Large skillet optional
  • Cutting board
  • Sharp knife
  • Measuring cups and spoons
  • Small bowl
  • Whisk or fork

Method
 

  1. Brown the chicken, if desired

    Heat a large skillet over medium-high heat.
    Place the chicken thighs in the skillet skin-side down. Cook without moving them too much for 5 to 7 minutes, or until the skin is deeply golden. Turn the thighs over and cook for another 2 minutes.
    If you are using skinless thighs, sear them for approximately 3 to 4 minutes on each side, until nicely browned.
    This step is optional. For a quicker preparation, place the uncooked chicken directly into the slow cooker and continue with Step 3.
  2. Deglaze the skillet

    Reduce the heat to medium. Add the garlic, red pepper flakes, black pepper, soy sauce and mirin directly to the skillet.
    Allow the mixture to bubble for 1 to 2 minutes, gently scraping the bottom of the pan to release the caramelized bits. Keep a close eye on the garlic so that it does not burn.
    Transfer the chicken and all the liquid from the skillet to the slow cooker.
  3. Add the broth

    Pour the chicken broth into the slow cooker.
    If you skipped the browning step, place the chicken in the slow cooker and add the garlic, red pepper flakes, black pepper, soy sauce, mirin and chicken broth.
    Cover and cook on Low for 4 to 5 hours, or until the chicken is tender and reaches an internal temperature of at least 165°F (74°C).
  4. Add the peanut butter

    Approximately 30 minutes before serving, transfer a little of the warm cooking liquid to a bowl. Add the peanut butter and whisk until smooth.
    Pour the mixture back into the slow cooker and gently stir it into the remaining sauce.
    If you used boneless thighs and would prefer smaller pieces, remove the chicken, cut it into bite-sized pieces and return it to the slow cooker.
  5. Thicken the sauce

    In a small bowl, mix the cornstarch with the cold water until completely smooth.
    Stir the slurry into the sauce, then add the sliced red pepper. Cover and cook on High for 20 to 30 minutes, or until the sauce has thickened slightly and the pepper is tender but still holds its shape.
  6. Serve

    If desired, remove the skin from bone-in thighs before serving.
    Alternatively, transfer the cooked thighs to a baking sheet and place them under the broiler for 3 to 5 minutes to crisp the skin. Watch them carefully, as the sauce can darken quickly.
    Serve the chicken and peanut sauce over warm rice or noodles. Finish with sliced green onions, chopped roasted peanuts and fresh cilantro.

Notes

Choosing the chicken

Bone-in, skin-on thighs are often the most affordable option and bring a little more richness to the sauce. Boneless, skinless thighs are easier to portion and serve, especially for younger children.
Chicken breasts are not ideal for this recipe because they can become dry during slow cooking. If you do use them, begin checking for doneness earlier.

Adjusting the heat

For a mild, family-friendly dinner, use ¼ teaspoon of red pepper flakes or omit them entirely. More can be added at the table for anyone who prefers a spicier sauce.

A note about salt

Soy sauce, chicken broth and roasted peanuts can all contribute salt. Using reduced-sodium soy sauce and broth makes it easier to control the final seasoning. Taste the finished sauce before adding any additional salt.

If the sauce is too thick

Stir in a small amount of warm chicken broth or water until it reaches your preferred consistency.

If the sauce is too thin

Mix an additional teaspoon of cornstarch with a teaspoon of cold water. Stir it into the hot sauce and continue cooking on High for another 10 to 15 minutes.

What to serve with peanut chicken

Steamed jasmine rice is the simplest accompaniment and absorbs the creamy sauce beautifully. Brown rice, rice noodles or egg noodles also work well.

For a more vegetable-forward dinner, serve the chicken with steamed broccoli, green beans, bok choy or a simple cucumber salad. A squeeze of lime added just before serving can also bring a little freshness to the rich peanut sauce.

Storage and reheating

Allow leftovers to cool, then store them in an airtight container in the refrigerator for up to 3 days.

Reheat gently on the stovetop or in the microwave, adding a splash of water or chicken broth if the peanut sauce has thickened in the refrigerator.

The chicken and sauce can also be frozen for up to 2 months. For the best texture, freeze them without the fresh garnishes and prepare fresh rice or noodles when ready to serve.

Did you make this recipe?

Please let me know how it turned out for you! Leave a comment below and tag @thesmallplenty on Instagram and hashtag it #thesmallplenty.

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