Slow Cooker Mongolian Chicken

The first time I made Mongolian chicken at home, I was shocked by how something so restaurant-worthy could come together with almost zero active cooking time. The slow cooker transforms the chicken into melt-in-your-mouth tender strands while that signature sauce thickens into something impossibly rich and glossy. Now it is the recipe I turn to when I want dinner to feel like a treat but I barely have energy to chop vegetables.

My husband came home from work one Tuesday to find this simmering away and actually asked what restaurant I had ordered from. The whole house smelled like garlic, ginger, and that unmistakable hoisin sweetness that makes your stomach growl the moment you walk through the door. It has become our go-to when we want comforting food without the takeout price tag.

Ingredients

• 1.5 lbs boneless skinless chicken thighs or breasts: Thighs stay juicier during long cooking but breasts work perfectly fine too
• 1/2 cup low sodium soy sauce: Regular soy sauce makes the final dish too salty so stick with low sodium
• 1/3 cup hoisin sauce: This is the secret ingredient that gives Mongolian beef its signature flavor
• 1/4 cup honey: Balances the salty elements and helps the sauce cling to the chicken
• 1/4 cup water: Thins the sauce slightly so nothing burns in the slow cooker
• 2 tablespoons brown sugar: Deepens the caramel color and adds another layer of sweetness
• 2 tablespoons rice vinegar: Cuts through the rich ingredients with just enough brightness
• 4 cloves garlic minced: Do not skip this because garlic is the backbone of the whole sauce
• 1 tablespoon fresh ginger grated: Fresh ginger makes a huge difference over ground
• 1 teaspoon sesame oil: A little goes a long way for that authentic Asian flavor
• 1/4 teaspoon ground black pepper: Adds subtle warmth without making it spicy
• 1/2 teaspoon crushed red pepper flakes: Optional but recommended if you like gentle heat
• 2 tablespoons cornstarch: Essential for thickening the sauce at the end
• 2 tablespoons cold water: Must be cold or the cornstarch will clump up
• 4 green onions sliced: Adds freshness and a pop of color against the dark sauce
• 1 tablespoon toasted sesame seeds: Toast them first in a dry pan for maximum nutty flavor

Instructions

Start the chicken:

Place your chicken in the slow cooker and pour half the sauce over the top so each piece gets coated

Make the sauce:

Whisk together soy sauce, hoisin, honey, water, brown sugar, rice vinegar, garlic, ginger, sesame oil, black pepper, and red pepper flakes until smooth

Cook low and slow:

Pour remaining sauce over chicken, cover, and cook on LOW for 4 hours or HIGH for 2 hours until chicken shreds easily

Shred the meat:

Transfer chicken to a plate and use two forks to pull it apart into bite sized pieces

Thicken the sauce:

Whisk cornstarch and cold water together then stir into the slow cooker and let bubble for 15 minutes until thickened

Combine and serve:

Return shredded chicken to the thickened sauce and stir well then top with green onions and sesame seeds over steamed rice

Save

This recipe became a staple during a particularly chaotic month when we were renovating our kitchen and cooking out of a microwave in the living room. Something about coming home to that incredible smell made the whole mess feel manageable and dinner still felt special despite the chaos.

Making It Gluten Free

Tamari works perfectly as a soy sauce substitute but you need to check your hoisin sauce label carefully because many brands contain wheat. I keep a bottle of gluten-free hoisin in my pantry just for this recipe because the flavor profile is so specific.

Adding More Vegetables

Broccoli florets or bell pepper strips can be added during the last hour of cooking but do not add them at the start or they will turn to mush. The vegetables soak up that incredible sauce while staying bright and tender crisp.

Serving Suggestions

Steamed jasmine rice is classic but this also works beautifully in lettuce cups for a lighter option or over cauliflower rice if you are watching carbs. The sauce is rich enough that a little goes a long way.

• Make extra sauce because everyone will want to spoon it over their rice
• Toast your sesame seeds in a dry pan for 2 minutes until fragrant
• Set out red pepper flakes at the table so people can add more heat

Save

There is something so satisfying about a recipe that delivers restaurant flavor with almost zero effort. This is the kind of dinner that makes people ask when you are making it again.

Recipe FAQs

→ Can I use chicken breasts instead of thighs?

Yes, chicken breasts work well in this dish. They may cook slightly faster than thighs, so check for doneness around the 3-hour mark on low heat to prevent drying out.

→ How do I make this gluten-free?

Substitute regular soy sauce with tamari or certified gluten-free soy sauce. Use gluten-free hoisin sauce, which is available at most health food stores or online.

→ Can I freeze the leftovers?

Absolutely. Cool completely, then store in airtight containers or freezer bags for up to 3 months. Thaw overnight in the refrigerator and reheat gently on the stovetop or in the microwave.

→ What can I serve with Mongolian chicken?

Steamed jasmine or brown rice is classic, but it also works well over noodles, in lettuce cups for a low-carb option, or with steamed broccoli and bell peppers for added vegetables.

→ Can I make this on the stovetop instead?

Yes. Simmer the chicken in the sauce on low heat, covered, for about 45-60 minutes until tender. Shred, return to the sauce, and cook another 5-10 minutes until thickened.

→ Is this dish spicy?

The base dish is mild with just a hint of warmth from black pepper. Add the optional red pepper flakes if you prefer some heat, adjusting the amount to your taste preference.