Slow Cooker Potatoes and Onions
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Prep Time: 15 minutes
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Cook Time (Low Intensity): 7 to 8 hours
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Cook Time (High Intensity): 3.5 to 4 hours
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Total Time: ~7 to 8 hours
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Yield: 6 to 8 servings
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Difficulty Level: Easy
Intensity & Time Guide
Understanding cooking intensity helps ensure your potatoes turn out creamy on the inside without dissolving into mush.
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Low Heat Setting (Recommended): Cook on LOW for 7 to 8 hours. Cooking at low intensity allows the onions to slowly break down and release their natural sugars, caramelizing gently in the slow cooker environment. The potatoes absorb the herb-infused butter and seasoned broth gradually, resulting in a rich, velvety texture.
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High Heat Setting: Cook on HIGH for 3.5 to 4 hours. Use this intensity setting if you are short on time. Make sure to stir once halfway through to ensure heat distributes evenly across all potato layers.
Ingredients
Main Ingredients
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3 lbs (1.35 kg) Yukon Gold or Red Potatoes: Scrubbed clean and cut into 1-inch uniform cubes (peeling is optional based on personal preference).
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2 Large Yellow or Sweet Onions: Halved and thinly sliced into half-moons.
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4 Cloves Garlic: Minced or finely grated.
Seasonings & Aromatics
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½ Cup Unsalted Butter: Cut into small cubes (or melted).
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¼ Cup Low-Sodium Chicken or Vegetable Broth: Provides moisture to start the gentle steaming process.
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1 Teaspoon Dried Thyme (or 1 tablespoon fresh thyme leaves)
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1 Teaspoon Dried Rosemary: Lightly crushed.
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1 Teaspoon Paprika: Adds subtle warmth and a warm golden color.
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1 ½ Teaspoons Smoked Sea Salt (or Kosher salt), adjusted to taste.
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½ Teaspoon Freshly Ground Black Pepper
Optional Garnish & Finish
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2 Tablespoons Fresh Parsley: Chopped finely for a pop of fresh color.
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½ Cup Shredded Sharp Cheddar or Parmesan Cheese: (Optional addition during the final 15 minutes).
Step-by-Step Cooking Instructions
1. Prep the Vegetables
Scrub the potatoes thoroughly under cool running water. Cut them into uniform 1-inch pieces to ensure even cooking throughout the slow cooker crock. Slice the onions thinly so they melt gracefully into the potato mixture over time.
2. Season and Layer
Lightly coat the bottom of a 6-quart slow cooker with non-stick cooking spray or a drop of olive oil. Layer half of the diced potatoes across the bottom, followed by half of the sliced onions and minced garlic. Sprinkle half of the salt, pepper, thyme, rosemary, and paprika over the layer. Repeat with the remaining potatoes, onions, garlic, and seasonings.
3. Add Liquid and Fats
Pour the chicken or vegetable broth evenly around the edges of the crock (avoid pouring directly over the top to keep the seasonings on the potatoes). Distribute the cubed butter evenly across the top layer of potatoes.
4. Set the Intensity and Cook
Cover the slow cooker tightly with its lid.
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For optimal tender texture: Set the cooker to LOW intensity and cook for 7 to 8 hours.
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For a quicker outcome: Set the cooker to HIGH intensity and cook for 3.5 to 4 hours.
Note: Keep the lid closed during the cooking process to maintain a stable cooking temperature inside the crock.
5. Final Touch and Serving
Once the potatoes pass the fork-tender test (a fork glides into the center effortlessly), turn the slow cooker to the WARM setting. Stir gently to coat all the potatoes in the buttery onion pan juices accumulated at the bottom.
If adding cheese, sprinkle shredded cheddar or Parmesan over the top, cover, and let melt for 5 to 10 minutes. Garnish with freshly chopped parsley just before serving.
Storage and Reheating Guidelines
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Refrigeration: Store leftover potatoes in an airtight container in the refrigerator for up to 4 to 5 days.
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Freezing: Freeze in a shallow container or freezer-safe sealable bag for up to 3 months. Thaw in the refrigerator overnight before reheating.
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Reheating: Reheat in a skillet over medium heat with a splash of butter or broth until crisp and warmed through, or microwave individual portions in 45-second intervals.
Estimated Nutritional Information
Nutritional values are calculated per serving based on 8 equal portions.
| Nutrient | Amount per Serving | % Daily Value* |
| Calories | 210 kcal | — |
| Total Fat | 11.5 g | 15% |
| Saturated Fat | 7.2 g | 36% |
| Trans Fat | 0.3 g | — |
| Cholesterol | 30 mg | 10% |
| Sodium | 420 mg | 18% |
| Total Carbohydrates | 25.5 g | 9% |
| Dietary Fiber | 3.5 g | 12% |
| Total Sugars | 3.2 g | — |
| Protein | 3.8 g | 8% |
| Vitamin D | 0.2 mcg | 1% |
| Calcium | 32 mg | 2% |
| Iron | 1.4 mg | 8% |
| Potassium | 610 mg | 13% |