Slow Cooker Chicken Au Poivre

Slow Cooker Chicken Au Poivre is a rich, comforting chicken dinner with tender chicken breasts simmered in a savory garlic, shallot, and black pepper broth, then finished with a silky cream sauce. Inspired by classic French steak au poivre, this easy slow cooker version brings restaurant style flavor to the family dinner table with just 15 minutes of prep. Serve it over mashed potatoes, rice, or noodles for a cozy meal everyone will look forward to.

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Slow cooker chicken au poivre with mashed potatoes and black pepper garnish on white plate

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Prep Time:15

Cook Time:4

Total Time:4 15

Ingredients

4 boneless, skinless chicken breasts (About 1½ pounds total)
½ tsp salt
1½ tsp coarsely cracked black pepper (Freshly cracked for the best flavor and texture)
½ tsp garlic powder
1 large shallot (Finely chopped)
2 cloves garlic (Minced)
½ cup chicken broth (Beef broth can be substituted for a richer sauce)
1 tbsp Dijon mustard
1 tsp whole black peppercorns (Lightly crushed)
1 tbsp butter
1 cup heavy cream (Add toward the end of cooking)
2 tbsp cornstarch (For thickening the sauce)
2 tbsp cold water (For mixing with the cornstarch)
1 tbsp fresh parsley (Chopped, for garnish)

Instructions

Step 1: Arrange the Chicken in the Slow Cooker - Place your four boneless, skinless chicken breasts in the bottom of the slow cooker, spreading them out as evenly as possible. I like to avoid stacking them when I can because it helps everything cook more evenly. If your chicken breasts are especially thick, try to arrange the thinner ends toward the center. There is no need to add oil or brown the chicken first. The slow cooker will gently cook the chicken in all those wonderful savory juices.
Step 2: Season the Chicken with Pepper and Garlic - Sprinkle the salt, coarsely cracked black pepper, and garlic powder evenly over the chicken breasts. Do not be shy with that black pepper because it is the signature ingredient in this dish. I like to crack the peppercorns fresh with a pepper mill set to a coarse grind. You want little bits of pepper you can actually see, rather than a fine black dust. That makes a real difference in the finished sauce.
Step 3: Add the Shallot and Fresh Garlic - Scatter the finely chopped shallot and minced garlic around the chicken. You can let some of the shallot fall between the chicken breasts and into the bottom of the slow cooker. As everything cooks, the shallot softens and adds a mild sweetness that balances the pepper. The garlic gives the cooking liquid that wonderful savory aroma that always seems to bring everyone wandering into the kitchen.
Step 4: Pour in the Broth and Dijon Mustard - Pour the chicken broth around the chicken, then add the Dijon mustard to the liquid. Give the liquid a gentle stir if needed to help the mustard mix in, without washing all the seasoning off the chicken. The broth keeps everything moist while the Dijon adds a little tang that balances the richness coming later. It may not look like much sauce at this point, but the chicken will release additional juices as it cooks.
Step 5: Add the Crushed Peppercorns and Butter - Sprinkle the lightly crushed whole black peppercorns into the sauce, then place the butter over the chicken. The butter will slowly melt and mingle with the garlic, shallot, broth, and pepper. This is where all those familiar ingredients start coming together into something special. The peppercorns should be lightly crushed rather than pulverized so you get that wonderful texture in the finished sauce.
Step 6: Cover and Cook Until the Chicken Is Tender - Place the lid on your slow cooker and cook on LOW for 3 to 4 hours, or until the chicken is tender and reaches an internal temperature of 165°F. Since chicken breasts are lean, I recommend checking them closer to the three hour mark, especially if your slow cooker runs hot. A meat thermometer is really helpful here. You want tender, juicy chicken, not chicken that has spent too long cooking and become dry.
Step 7: Remove the Chicken and Add the Cream - Carefully transfer the cooked chicken breasts to a plate and loosely cover them to keep warm. Leave all that flavorful cooking liquid in the slow cooker because it is about to become your sauce. Pour in the heavy cream and stir gently until the liquid looks smooth and creamy. Adding the cream toward the end helps it stay silky instead of potentially separating during several hours of cooking.
Step 8: Thicken the Creamy Peppercorn Sauce - In a small bowl, whisk the cornstarch and cold water together until completely smooth. Pour this mixture into the creamy sauce in your slow cooker and stir well. Cover and switch the slow cooker to HIGH for about 10 to 15 minutes, or until the sauce thickens. You are looking for a consistency that will nicely coat a spoon. If it needs another few minutes, give it a little more time while keeping an eye on it.
Step 9: Return the Chicken and Spoon Over the Sauce - Once the sauce has thickened, carefully return the chicken breasts to the slow cooker. Spoon that beautiful creamy peppercorn sauce generously over each piece. I like to let the chicken sit in the warm sauce briefly so everything comes together before serving. The sauce should cling to the chicken, with little bits of shallot and cracked pepper throughout.
Step 10: Garnish and Serve - Sprinkle the chopped fresh parsley over the chicken just before serving. That little touch of green makes the dish look beautiful and adds a welcome bit of freshness. Serve the chicken warm with plenty of extra sauce. Around my table, I would put a big bowl of mashed potatoes alongside it because leaving any of that peppercorn sauce behind would be a shame.

Notes

Substitutions

Sometimes dinner depends on what you already have in the refrigerator, and I am all for making a recipe work with what is available.

Chicken thighs: Boneless, skinless chicken thighs can replace chicken breasts for a slightly richer flavor and a forgiving, juicy texture. Cooking times may vary, so check for doneness.
Beef broth: Swap chicken broth for beef broth if you want a darker, deeper sauce that tastes a little closer to traditional steak au poivre.
Yellow onion: Finely chopped yellow onion works well in place of shallot, although its flavor is a little stronger.
Half and half: You can use half and half instead of heavy cream for a lighter sauce, but the finished texture will be slightly thinner and may need gentle handling to prevent separation.
Green peppercorns: Replace some of the black peppercorns with green peppercorns for a slightly different, more traditional French inspired flavor.
Dried parsley: If fresh parsley is unavailable, a small sprinkle of dried parsley can work as a finishing touch, although fresh gives the nicest color.

Variations

Once you have made the original version, there are a few simple ways to change things up depending on what your family enjoys.

Mushroom Chicken Au Poivre: Add 8 ounces of sliced mushrooms along with the shallot for an earthy, savory addition that tastes wonderful with the creamy sauce.
Brandy Chicken Au Poivre: Add 2 tablespoons of brandy or cognac with the broth for a more traditional au poivre flavor. Keep in mind that slow cooking does not guarantee all the alcohol will evaporate.
Extra Creamy Chicken Au Poivre: Stir in an additional splash of heavy cream at the end if you prefer an especially rich, mellow peppercorn sauce.
Garlic Chicken Au Poivre: Add another 2 cloves of minced garlic if your family loves a stronger garlic flavor.
Chicken Au Poivre with Sweet Onions: Replace the shallot with a thinly sliced sweet onion for a heartier sauce with plenty of tender onion throughout.
Milder Family Version: Slightly reduce the black pepper and add a little more cream if you are serving younger kids who are not used to peppery dishes.

Tips and Tricks

These are the little things I pay attention to whenever I want this chicken to turn out especially good.

Crack your pepper fresh: Freshly cracked black pepper has a stronger aroma and better texture than finely ground pepper, and those little pieces are what give au poivre its character.
Do not overcook the chicken: Begin checking the internal temperature early because boneless chicken breasts can become dry when cooked too long.
Use a meat thermometer: The thickest part of each chicken breast should reach 165°F before you remove it from the slow cooker.
Add the cream near the end: Waiting until the chicken has cooked helps prevent the cream from separating during the longer cooking period.
Mix the cornstarch with cold water: Never dump dry cornstarch directly into hot sauce because it can form stubborn lumps.
Give the sauce time to thicken: Allow the full 10 to 15 minutes on HIGH after adding the cornstarch slurry, and remember that different slow cookers heat at different speeds.
Taste before adding extra salt: The chicken broth, Dijon mustard, and seasonings already add plenty of flavor, so taste the finished sauce before adjusting it.
Save every bit of sauce: This dish is especially good with something that can soak up the creamy peppercorn sauce, so do not forget a hearty side.

Serving Ideas

I think one of the nicest things about this recipe is how easily it fits with everyday side dishes. You do not need to make anything complicated to turn it into a satisfying family dinner.

Creamy mashed potatoes: My favorite choice because the potatoes soak up that rich peppercorn sauce beautifully.
Buttered egg noodles: A bowl of tender egg noodles makes an easy, comforting base for the chicken and sauce.
Fluffy white rice: Rice is wonderful for catching every little bit of the creamy sauce and keeping dinner simple.
Roasted green beans: Their fresh, slightly crisp texture balances the richness of the chicken.
Steamed broccoli: A simple vegetable side that tastes especially good with a spoonful of sauce over the top.
Warm crusty bread: Perfect for mopping up the creamy peppercorn sauce at the bottom of your plate.
Garlic roasted potatoes: Crispy potatoes add a lovely contrast to the tender chicken.
Simple green salad: A light salad with a tangy dressing keeps the meal feeling balanced when the main dish is especially rich.

Storage and Make Ahead Tips

This chicken is delicious served fresh, but it is also useful to know how to handle leftovers when dinner does not quite disappear.

Refrigerator storage: Place leftover chicken and peppercorn sauce together in an airtight container and refrigerate for up to 3 days.
Gentle reheating: Warm leftovers in a covered skillet or saucepan over low heat until thoroughly heated. Avoid letting the creamy sauce boil because it may separate.
Microwave reheating: Reheat individual portions in short intervals, stirring the sauce between intervals so it warms evenly without becoming too hot.
Keeping the chicken moist: Store the chicken directly in the sauce rather than separately because the sauce helps protect it from drying out.
Preparing ingredients ahead: Chop the shallot and garlic, measure the seasonings, and prepare your other ingredients the night before. Refrigerate anything perishable until cooking time.
Freezing leftovers: Cream sauces can separate after freezing and thawing, so I prefer refrigerating this dish and enjoying it within a few days instead of freezing it.
Refreshing leftover sauce: If the sauce becomes a little thick in the refrigerator, add a small splash of chicken broth or cream while gently reheating to bring back its smooth consistency.

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Servings: servings