Ingredients
4 large Leeks
3 lbs Potatoes
1 medium Onio
4 cloves Garlic
6 cups Chicken Broth
2 Bay Leaves
1 tsp Dried Thyme
1 tsp Salt
0.5 tsp Black Pepper
0.5 cup Heavy Cream
2 tbsp Fresh Parsley
Instructions
- Prepare the Leeks: First, trim the dark green tops and the root end off the leeks. Slice the white and light green parts lengthwise, then chop them into half-moon shapes. Place the chopped leeks in a bowl of cold water and swish them around vigorously to remove any dirt or grit. Let them sit for a few minutes, then lift them out with a slotted spoon, leaving any sand behind. Rinse them once more under cold water. This step is crucial for a grit-free slow cooker potato leek soup
- Sauté Aromatics (Optional but Recommended): In a large skillet over medium heat, melt a tablespoon of butter or olive oil. Add the chopped onion and sauté for about 5-7 minutes until softened and translucent. Next, add the minced garlic and cook for another minute until fragrant. This step deepens the flavor of your Crockpot Potato Leek Soup significantly
- Combine in Slow Cooker: Transfer the sautéed onions and garlic (if using) into the basin of your slow cooker. Add the thoroughly cleaned and chopped leeks, diced potatoes, chicken broth, bay leaves, dried thyme, salt, and pepper
- Cook: Give everything a good stir to combine. Cover your slow cooker and cook on LOW for 6-8 hours, or on HIGH for 3-4 hours, until the potatoes are fork-tender. This long, slow cooking process is what makes this potato leek soup so flavorful
- Remove Bay Leaves: Carefully remove the bay leaves from the soup
- Blend (Optional): For a smooth and creamy Crockpot Potato Leek Soup, use an immersion blender directly in the slow cooker. Blend until you reach your desired consistency. If you don't have an immersion blender, carefully transfer the soup in batches to a standard blender. Blend until smooth, then return the soup to the slow cooker. Be cautious when blending hot liquids
- Add Cream (Optional): Stir in the heavy cream (or your chosen dairy-free alternative). Cook on LOW for an additional 15-20 minutes, just long enough to heat the cream through, but do not bring it to a boil
- Taste and Adjust: Finally, taste the Crockpot Potato Leek Soup and adjust seasoning as needed. You might want more salt, pepper, or a pinch of an herb
- Serve: Ladle the warm, creamy slow cooker potato leek soup into bowls. Garnish with fresh parsley or chives, and enjoy!
Notes
**Substitutions & Variations:**
For a Dairy-Free/Vegan soup: Use full-fat canned coconut milk or a plant-based unsweetened cream alternative (like cashew cream or oat milk creamer) and vegetable broth.
Potato Choices: While Russets and Yukon Golds are ideal for creaminess, red potatoes or sweet potatoes can be used, though they may alter the texture.
Adding Protein: Incorporate cooked shredded chicken, ham during the last hour, or crumbled bacon as a topping.
Herbs and Spices: Experiment with rosemary, chives, a dash of nutmeg, or smoked paprika for added flavor.
Vegetable Boost: Add carrots, celery, or a handful of spinach towards the end of cooking.
Thicker or Thinner: Reduce broth by one cup for a thicker soup, or add more warm broth/water if it's too thick after blending. For creaminess without cream, blend in 1/2 cup cooked cannellini beans or silken tofu.
Garnish: Besides parsley, consider chives, a drizzle of olive oil, grated Parmesan cheese, or croutons.
**Pro Tips for Success:**
Thoroughly clean leeks: Slice, soak in cold water, swish, lift, and rinse again to avoid grit.
Don't skip sautéing onions and garlic: This step significantly deepens the flavor by caramelizing sugars.
Potato Choice Matters: Russet or Yukon Gold potatoes are best for a creamy texture; avoid waxy varieties.
Use an immersion blender for easy, mess-free blending. If using a standard blender, work in batches and be careful with hot liquids.
Season throughout and at the end: Adjust salt, pepper, and herbs after cooking and adding cream.
Do not overcook after adding cream: Simply heat through on LOW for 15-20 minutes to prevent separation or curdling.
Fresh herbs for garnish brighten flavor and add color.
**Storage & Reheating Tips:**
Storage: Cool completely, then store in an airtight container in the refrigerator for 3-4 days.
Reheating: Gently warm on the stovetop over medium-low heat, adding broth/water if too thick. Microwave individual portions, stirring occasionally.
Freezing: Freezes well for up to 3 months. For best results, freeze before adding heavy cream. If cream has been added, it might separate upon thawing, but a quick whisk or blend usually restores consistency. Thaw overnight in the refrigerator.
- Prep Time: 25 mins
- Cook Time: 25 mins
- Category: Soup
- Method: Slow Cooking
- Cuisine: American
- Diet: Vegetarian, Vegan, Gluten Free
Nutrition
- Serving Size: 1 bowl
- Calories: 250 kcal
- Sugar: 5g
- Sodium: 550mg
- Fat: 10g
- Saturated Fat: 6g
- Carbohydrates: 35g
- Fiber: 5g
- Protein: 7g
- Cholesterol: 30mg