Slow Cooker Sweet and Sour Chicken
There’s something irresistibly cozy about a dish that simmers all day and arrives at the table with glossy sauce, tender chicken, and bright bursts of pineapple. This Slow Cooker Sweet and Sour Chicken is an easy, weeknight-friendly recipe that delivers tang, sweetness, and a touch of heat — all without fuss. The sauce is made from pantry-friendly ingredients, and the slow cooker does the heavy lifting so dinner practically makes itself.
Before we dive into the step-by-step method, a few notes on the ingredients and why they matter. Using boneless, skinless chicken breast halves cut into 1″–1½” pieces lets the meat soak up the sauce while still holding shape. Two stages of chicken broth help build body in the sauce when combined with cornstarch for thickening. Fresh pineapple and crisp-tender bell pepper and onion add texture and freshness so every bite has balance.
Why you’ll love this version
- Hands-off cooking: prep in 15–20 minutes, then let the slow cooker do the rest.
- Balanced flavor: sweet, tangy, and savory with optional heat from Sriracha.
- Flexible sides: serve over rice, cauliflower rice, or noodles.
- Big-batch friendly: doubles easily for meal prep.
Ingredients
- 3 boneless, skinless chicken breast halves (about 1 1/2 lb), cut into 1″ – 1 1/2″ pieces
- 1/2 cup chicken broth
- 1/2 cup light brown sugar
- 1/2 cup granulated sugar
- 1/3 cup white vinegar
- 3 Tbs lemon juice
- 3 Tbs low sodium soy sauce
- 3 Tbs tomato paste
- 1/2 tsp garlic powder
- 1/4 tsp ground ginger
- 1/4 tsp freshly ground black pepper
- 1/2 – 1 tsp Sriracha hot sauce (optional)
- 1/3 cup chicken broth
- 1/3 cup cornstarch
- 3/4 cup diced fresh pineapple (you could also use canned but fresh is best)
- 1/4 of an onion, diced into 1″ pieces
- 1/2 of a green bell pepper, diced into 1″ pieces (I’ve also used red)
Equipment
- Slow cooker (4–6 quart)
- Mixing bowl and whisk
- Measuring spoons and cups
- Cutting board and chef’s knife
- Large spoon or rubber spatula
Prep tips
- Cut the chicken into uniform 1″–1½” pieces so it cooks evenly and absorbs the sauce consistently.
- Dice the onion and bell pepper into roughly 1″ pieces to match the chicken size and keep texture balanced after slow cooking.
- If you prefer a milder dish, start with 1/2 tsp Sriracha; increase only if you want more heat.
- Use fresh pineapple when possible for brighter flavor and better texture; canned will work if drained but is sweeter and softer.
Step-by-step directions
- Place the chicken in the slow cooker: Put the 3 boneless, skinless chicken breast halves, cut into 1″–1½” pieces, into the slow cooker in an even layer.
- Make the sauce: In a mixing bowl, combine 1/2 cup chicken broth, 1/2 cup light brown sugar, 1/2 cup granulated sugar, 1/3 cup white vinegar, 3 tablespoons lemon juice, 3 tablespoons low sodium soy sauce, 3 tablespoons tomato paste, 1/2 teaspoon garlic powder, 1/4 teaspoon ground ginger, 1/4 teaspoon freshly ground black pepper, and 1/2 to 1 teaspoon Sriracha hot sauce if using. Whisk until the sugars and tomato paste are dissolved and the sauce is smooth.
- Pour the sauce over the chicken: Pour the mixed sauce evenly over the chicken pieces in the slow cooker. Use a spoon to gently stir so the chicken is mostly coated.
- Cook low and slow: Cover and cook on LOW for 4–5 hours or on HIGH for 2–3 hours, until the chicken pieces reach an internal temperature of 165°F and are tender. The sauce will have infused into the chicken during this time.
- Prepare the thickening slurry: When the chicken is cooked, whisk together the remaining 1/3 cup chicken broth and 1/3 cup cornstarch in a small bowl until smooth and no lumps remain. This slurry will thicken the sauce quickly.
- Add vegetables and fruit: Stir the 3/4 cup diced fresh pineapple, 1/4 of an onion diced into 1″ pieces, and 1/2 of a green bell pepper diced into 1″ pieces into the slow cooker. These add texture and brightness to the finished dish.
- Thicken the sauce: Pour the cornstarch slurry into the slow cooker and stir gently to combine. Turn the slow cooker to HIGH if it isn’t already, and cook uncovered for about 15–20 minutes more, stirring once or twice, until the sauce has thickened and becomes glossy. If needed, continue cooking in 5-minute increments until you reach your desired sauce consistency.
- Finish and adjust seasoning: Taste the sauce and adjust seasoning if necessary. Add more black pepper for spice or a splash more lemon juice if you prefer extra brightness. If you used the lower Sriracha amount and want more heat, stir in additional Sriracha in 1/4 teaspoon increments.
- Serve: Spoon the Slow Cooker Sweet and Sour Chicken over a bed of steamed rice, cauliflower rice, or your favorite noodles. Garnish with chopped scallions or sesame seeds if desired.
Make-ahead and storage
- Make-ahead: Prepare through step 4, cool, and refrigerate for up to 24 hours. Finish steps 5–9 when ready to serve.
- Storage: Store leftovers in an airtight container in the refrigerator for 3–4 days.
- Freezing: Freeze cooked chicken and sauce for up to 2 months. Thaw overnight in the fridge and rewarm gently on the stove or in a slow cooker until heated through. Add a little water if the sauce tightens up.
Serving suggestions
- Serve over steamed white or brown rice to soak up the sauce.
- Try it over warm egg noodles or stir into cauliflower rice for a lower-carb option.
- Brighten the plate with a side of lightly steamed broccoli or snap peas for crunch and color.
Troubleshooting
- If the sauce is too thin after adding the slurry, continue cooking uncovered on HIGH in 5–10 minute increments until it thickens. Make sure the slurry was well-mixed before adding.
- If the sauce is too thick, stir in a tablespoon of water or chicken broth at a time until you reach the consistency you want.
- If the pineapple seems too sweet for your taste, add an extra tablespoon of lemon juice or a splash more vinegar and stir well.
Variations and swaps
- Vegetable boost: Add sliced carrots or water chestnuts with the peppers and onion for extra texture.
- Protein swap: You can use boneless, skinless chicken thighs cut to the same size if you prefer darker meat; they’ll stay juicier with longer cook times.
- Heat increase: Swap Sriracha for a teaspoon of chili garlic sauce or add red pepper flakes to taste.
- Ginger-forward: For a more pronounced ginger flavor, add 1 teaspoon of grated fresh ginger to the sauce mixture in step 2.
Nutritional considerations
This recipe balances sweet and tangy flavors by using both brown and granulated sugars with vinegar and lemon juice. To reduce sugar, you can cut the granulated sugar by up to one-third, though this will change the traditional sweet profile. Serving with whole-grain rice or plenty of vegetables can help round out the meal nutritionally.
Final thoughts
This Slow Cooker Sweet and Sour Chicken is a dependable recipe for busy nights when you want comfort food without standing over the stove. The slow cooker yields tender chicken and a punchy sauce with minimal effort. The fresh pineapple and crisp vegetables keep each bite lively, while the cornstarch slurry gives the sauce that glossy finish we all love. Make it for a family dinner, double it for meal prep, and enjoy how the slow cooker turns a handful of simple ingredients into something special.
Happy cooking — and may your weeknights be a little easier and a lot tastier.
Slow Cooker Sweet and Sour Chicken
Ingredients
Equipment
Method
- Place the cut chicken pieces in the slow cooker in an even layer.
- In a mixing bowl, whisk together 1/2 cup chicken broth, light brown sugar, granulated sugar, white vinegar, lemon juice, soy sauce, tomato paste, garlic powder, ground ginger, black pepper, and Sriracha (if using) until smooth.
- Pour the sauce over the chicken, pressing the chicken down so it is covered by the sauce.
- Cover and cook on low for 5 to 6 hours, until the chicken is tender and cooked through.
- About 20–30 minutes before serving, whisk together 1/3 cup chicken broth and 1/3 cup cornstarch in a small bowl until smooth to make a slurry.
- Gently fold the cornstarch slurry into the slow cooker mixture, then add the diced pineapple, diced onion, and diced bell pepper.
- Cover and cook on low for an additional 20 to 30 minutes, stirring once or twice, until the sauce thickens and the fruit and vegetables are slightly tender.
- Serve warm over white or brown rice.
Notes
- Use fresh pineapple for best flavor.
- Adjust Sriracha to control heat level.
- Stir gently when adding slurry to avoid breaking the chicken.
