Easy Slow Cooker Sweet and Sour Meatballs Recipe

Easy Slow Cooker Sweet and Sour Meatballs Recipe — Tender, flavorful meatballs simmered in a tangy, slightly sweet sauce. After making this many times, I discovered the trick to keeping them from falling apart. Jump to the recipe card or keep reading for my best tips. If you love recipes like this, you’ll also enjoy Easy No Bake S’mores Pudding Cups Recipe and Slow Cooker Creamy Chicken Tortellini Dinner Recipe.

Why This Easy Slow Cooker Sweet and Sour Meatballs Recipe Is Pure Comfort
- Perfect for busy weeknights
- Better than takeout
- Kid-friendly and freezer-friendly
What You'll Need for Easy Slow Cooker Sweet and Sour Meatballs Recipe
Choosing the right ingredients makes a big difference, but this recipe is forgiving enough to work with what you have.
- 1 lb frozen meatballs
- 1 cup ketchup
- 1/2 cup brown sugar
- 1/4 cup apple cider vinegar
- 1/4 cup soy sauce
- 1 tbsp Worcestershire sauce
- 1 tsp garlic powder
- 1 tsp onion powder
- Salt and pepper to taste
- Red pepper flakes (optional)
- Optional: Green onions
- Optional: Sesame seeds

📝 Ingredient Notes
- Meatballs: Homemade or store-bought, frozen or fresh
🛒 Tools & Equipment I Recommend
- Slow Cooker — Hands-off cooking, perfect for busy days → See on Amazon
- Meat Thermometer — Ensures meatballs are cooked through without overcooking → See on Amazon

How to Make Easy Slow Cooker Sweet and Sour Meatballs Recipe
- Combine sauce ingredients: In a bowl, mix ketchup, brown sugar, vinegar, soy sauce, Worcestershire sauce, garlic powder, and onion powder.
- Cook meatballs: Place meatballs in slow cooker. Pour sauce over meatballs. Cook on low for 6-8 hours or high for 3-4 hours.
- Serve: Taste and adjust seasoning. Garnish with green onions and sesame seeds. Serve over rice or noodles.
Cook's Tips for Perfect Easy Slow Cooker Sweet and Sour Meatballs Recipe
- Common mistake and fix: Avoid overcrowding the slow cooker to prevent meatballs from falling apart. If they do, stir gently and add a bit of cornstarch slurry to thicken the sauce.
- Tip: For a thicker sauce, mix 1 tbsp cornstarch with 1 tbsp water and stir into the slow cooker in the last 30 minutes of cooking.
- Tip: Make ahead and freeze for up to 3 months. Thaw in the fridge overnight before reheating.
Storing & Reheating Easy Slow Cooker Sweet and Sour Meatballs Recipe
Short-Term Storage
Store in an airtight container in the fridge. Store leftovers in an airtight container for up to 5 days. Make-ahead tip: Prepare the night before and refrigerate the meatballs and sauce separately. Cook in the morning.
Freezing Easy Slow Cooker Sweet and Sour Meatballs Recipe
Freeze for up to 3 months. Thaw in the fridge overnight before reheating.
How to Reheat Without Drying It Out
Oven: Reheat in a 350°F oven for 15-20 minutes. Microwave: Reheat in the microwave for 2-3 minutes, stirring halfway through.
Recipe Notes
- Chef tip: For a spicier version, add a pinch of red pepper flakes to the sauce.
- Best substitution: Substitute ground turkey or chicken for the beef.
- Make-ahead: Prepare the night before and refrigerate the meatballs and sauce separately. Cook in the morning.
- Scaling: Double the ingredients to serve a crowd.
- Troubleshooting: If the sauce is too thin, mix 1 tbsp cornstarch with 1 tbsp water and stir into the slow cooker in the last 30 minutes of cooking.
Want to level up this recipe?
Meat Mallet — Ensures even cooking and tender meatballs → Check price on Amazon
Easy Slow Cooker Sweet and Sour Meatballs Recipe

Ingredients
Main Ingredients
- 1 lb frozen meatballs
- 1 cup ketchup
- 1/2 cup brown sugar
- 1/4 cup apple cider vinegar
- 1/4 cup soy sauce
- 1 tbsp Worcestershire sauce
- 1 tsp garlic powder
- 1 tsp onion powder
Seasonings
- Salt and pepper to taste
- Red pepper flakes (optional)
Optional Toppings
- Green onions
- Sesame seeds
Instructions
- Combine sauce ingredients: In a bowl, mix ketchup, brown sugar, vinegar, soy sauce, Worcestershire sauce, garlic powder, and onion powder.
- Cook meatballs: Place meatballs in slow cooker. Pour sauce over meatballs. Cook on low for 6-8 hours or high for 3-4 hours.
- Serve: Taste and adjust seasoning. Garnish with green onions and sesame seeds. Serve over rice or noodles.
Notes
- Chef tip: For a spicier version, add a pinch of red pepper flakes to the sauce.
- Best substitution: Substitute ground turkey or chicken for the beef.
- Make-ahead: Prepare the night before and refrigerate the meatballs and sauce separately. Cook in the morning.
- Scaling: Double the ingredients to serve a crowd.
- Troubleshooting: If the sauce is too thin, mix 1 tbsp cornstarch with 1 tbsp water and stir into the slow cooker in the last 30 minutes of cooking.
Storage
- Fridge: Store leftovers in an airtight container for up to 5 days.
- Freezer: Freeze for up to 3 months. Thaw in the fridge overnight before reheating.
- Oven reheat: Reheat in a 350°F oven for 15-20 minutes.
- Microwave reheat: Reheat in the microwave for 2-3 minutes, stirring halfway through.
- Make ahead: Prepare the night before and refrigerate the meatballs and sauce separately. Cook in the morning.
Nutrition Per Serving
- Calories: 280
- Protein: 22g
- Fat: 10g
- Carbs: 22g
- Fiber: 1g
- Sugar: 18g
- Sodium: 1200mg
- Cholesterol: 75mg
- Sat. Fat: 3.5g
Nutritional values are estimates only. Actual values may vary by brand and portion size.
Easy Slow Cooker Sweet and Sour Meatballs Recipe FAQs
Yes, prepare the night before and refrigerate the meatballs and sauce separately. Cook in the morning.
Avoid overcrowding the slow cooker. If they do, stir gently and add a bit of cornstarch slurry to thicken the sauce.
Yes, cook on high pressure for 10 minutes with a 10-minute natural release.
Yes, bake at 375°F for 20-25 minutes, then pour the sauce over the meatballs and bake for another 15-20 minutes.
Serve over rice, noodles, or with a side of steamed vegetables.
A Warm Final Note
I can’t wait for you to try Easy Slow Cooker Sweet and Sour Meatballs Recipe and see how effortlessly it comes together. When you make it, pop back here and leave a rating or share how it turned out — I love hearing from you!






