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Making black bean soup in a slow cooker is not only a convenient way to prepare a hearty and flavorful meal, but it also allows the rich flavors of the ingredients to meld together beautifully over time.

How to Slow Cook Black Bean Soup

Slow cooking the black beans along with aromatic vegetables, herbs, and spices creates a deeply satisfying dish that’s perfect for warming up on a chilly day or enjoying as a comforting meal any time of the year.

Welcome to the Cast Iron Lane Slow Cooker Series where I feature a delicious recipe that use a slow cooker to prepare the meal.

You can browse a wide selection of slow cookers here on Amazon, Best Buy, Target, Kohl’s, Macy’s, and Walmart.com.

Over the last ten years, I’ve noticed a significant difference in the heat and cook times of the various slow cookers available on the market. I feel like the newer slow cookers can tend to get a lot hotter than older models. (Maybe that’s just a combination of the age and level of use for each slow cooker.) You’ll need to adjust the heat levels and time according to your slow cooker.

With minimal effort required, this method ensures that every spoonful of the soup is packed with wholesome goodness, making it a family favorite.

I hope you give it a try and let me know what you think in the comments below!

Note: This recipe makes approximately 3 quarts. So you’ll need to choose a slow cooker close to that size.

Kitchen Items for this Recipe

  • 3 Quart Slow Cooker
  • Large mixing bowls
  • Soup bowls
  • Enjoy and happy slow cooking!

    How to Make Slow Cooker Black Bean Soup

    Black Bean Soup (Slow Cooker)

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    Prep: 20 minutes
    Cook: 6 hours
    Total Time: 6 hours 20 minutes
    Servings: 8 servings
    Calories: 75kcal
    This recipe for black bean soup in a slow cooker creates a rich and flavorful dish bursting with aromatic vegetables, herbs, and spices, perfect for a comforting and convenient meal.


    • 1 lb black beans
    • 2 quarts cold water
    • ¼ lb bacon (or ½ lb smoked ham, diced)
    • 2 medium onions, chopped
    • 1 tsp garlic salt
    • ¼ tsp ground pepper


    • Mix all ingredients together in large bowl
    • Pour into slow cooker
    • Cover
    • Cook 4 - 6 hours on high*, checking occassionally


    *You won't need to presoak the beans if you are using the high setting.  If you choose to use a lower setting and cook for a longer period of time, presoak your beans.


    Serving: 1gCalories: 75kcal (4%)Carbohydrates: 13g (4%)Protein: 5g (10%)Fat: 0.3gSaturated Fat: 0.1g (1%)Polyunsaturated Fat: 0.1gMonounsaturated Fat: 0.03gSodium: 291mg (13%)Potassium: 202mg (6%)Fiber: 5g (21%)Vitamin A: 4IUCalcium: 16mg (2%)Iron: 1mg (6%)
    Course: Lunch, Main Course, Main Dish, Soup
    Cuisine: American
    Keyword: Black Bean, Crock Pot, Slow Cooker, Soups
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