Slow Cooker Sweet and Sour Chicken

If you love comfort food that tastes indulgent but requires almost zero hands-on time, this Slow Cooker Sweet and Sour Chicken is a weeknight hero. It combines tender chicken pieces, bright pineapple, and a perfectly balanced sauce that hits sweet, tangy, and savory notes. The slow cooker does the heavy lifting, turning simple ingredients into a vibrant dinner you can spoon over rice, noodles, or a bed of greens. This version keeps the flavors bold and straightforward while using easy pantry staples.

Why you’ll love this recipe

• Effortless prep — toss and go. Most of the time is hands-off simmering in the slow cooker.
• Bright, balanced sauce — brown sugar, vinegar, lemon juice, and tomato paste create layers that pair beautifully with pineapple.
• Textural contrast — soft, shreddable chicken with chunky vegetables and juicy pineapple.
• Family-friendly — adjust the sriracha for heat or leave it out for a kid-approved meal.

Ingredients

Use the ingredient list exactly as written below.

• 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)

Quick notes before you start

Gather everything before you begin. The sauce comes together quickly, and having measured ingredients makes assembly fast. Cut the chicken and vegetables to approximately 1″–1 1/2″ pieces so they cook evenly. If you prefer a milder sauce, start with 1/2 teaspoon Sriracha or skip it entirely.

Step-by-step directions

The directions have been rewritten into clear, sequential steps. Follow them in order for the best results.

1. Place the cut chicken pieces into the bottom of a 4- to 6-quart slow cooker in a single layer if possible. This keeps cooking even and prevents overcrowding.
2. In a medium 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 you want heat. Whisk until the sugars and tomato paste are fully dissolved and the mixture is smooth.
3. Pour the prepared sauce evenly over the chicken in the slow cooker so each piece gets coated.
4. Add the diced onion, diced green bell pepper, and 3/4 cup diced fresh pineapple on top of the sauced chicken. These vegetables and fruit will cook until tender but still hold their shape.
5. Cover the slow cooker with the lid and cook on low for 3 to 4 hours. The chicken should reach an internal temperature of 165°F and be fork-tender. Check at 3 hours; depending on your slow cooker, you may need the full 4 hours.
6. When the chicken is cooked through, combine 1/3 cup chicken broth and 1/3 cup cornstarch in a small bowl. Stir or whisk until the cornstarch is completely dissolved and the mixture is smooth with no lumps. This slurry will thicken the sauce.
7. Carefully remove the slow cooker lid and pour the cornstarch slurry into the hot contents. Stir to combine, distributing the slurry evenly throughout the sauce and vegetables.
8. Turn the slow cooker to high and cook, uncovered, for an additional 15 to 20 minutes. Stir once or twice during this time to help the sauce thicken and coat the chicken pieces. The sauce should become glossy and cling to the chicken.
9. Taste and adjust seasoning if needed. If you want more tang, add a splash of lemon juice. If you prefer sweeter, stir in a teaspoon of granulated sugar and reheat briefly. Remember the sauce will thicken further as it cools.
10. Serve the Slow Cooker Sweet and Sour Chicken hot over steamed rice, cauliflower rice, or noodles. Spoon extra sauce over each serving and garnish with sesame seeds or sliced green onions if desired.

Make-ahead and storage

This dish is excellent for meal prep. Store cooled leftovers in an airtight container in the refrigerator for up to 4 days. Reheat gently on the stove over low heat or in the microwave until warmed through. If the sauce is too thick after chilling, stir in a tablespoon or two of water or chicken broth while reheating to loosen it.

Tips and variations

• Vegetable swaps: Use red bell pepper in place of green for a sweeter flavor and bolder color.
• Pineapple: Fresh pineapple provides the best texture and brightness, but canned pineapple drained of syrup is an acceptable shortcut.
• Protein: This sauce also works with boneless, skinless thighs cut into pieces; adjust cook time slightly if pieces are large.
• Thicker sauce: If the sauce is still thin after the 15–20 minute high heat step, mix another tablespoon of cornstarch with a tablespoon of cold water and stir it in, heating until glossy.
• Less sugar: If you’d like to reduce sweetness, use 1/4 cup of each sugar and taste before thickening, but the recipe amounts are balanced to produce that classic sweet and sour profile.
• Spice level: The optional 1/2–1 teaspoon Sriracha lets you control heat. For even more depth without heat, add a teaspoon of hoisin sauce if available.

Serving suggestions

• Serve over steamed white or jasmine rice for a classic pairing.
• Try it with brown rice or quinoa for more fiber and a nuttier flavor.
• Spoon over stir-fried vegetables and rice noodles for a rounded one-bowl meal.
• Use leftovers as a filling for lettuce wraps or on top of grain bowls with avocado and shredded cabbage.

Nutrition snapshot (per serving, approximate)

This will vary based on portion size and accompaniments. The dish provides a good amount of protein from the chicken and a mix of simple carbohydrates from the sugars and pineapple. To lighten the meal, serve over a smaller portion of rice and increase the vegetable portion.

What to expect on the first bite

The sauce greets you with a bright, tangy chew from the vinegar and lemon, followed by the warm molasses notes of light brown sugar and the ripe pop of pineapple. Tomato paste gives depth without overt tomato flavor, while soy sauce brings savory umami. The chicken absorbs these layers, staying moist thanks to low-and-slow cooking in the slow cooker. The veggies soften but keep a pleasant bite, and the cornstarch gives the sauce the shiny, clingy texture that makes every forkful satisfyingly saucy.

Final thoughts

This Slow Cooker Sweet and Sour Chicken strikes a dependable balance between fuss-free cooking and big, bright flavors. The recipe is forgiving and adaptable, so once you’ve tried the base version, feel free to tweak the sugar levels, swap peppers, or add more veggies to suit your household. If you’re looking for a comforting, saucy weeknight meal that practically makes itself, this is a recipe worth bookmarking.

Happy cooking—and enjoy every saucy bite.