Finished baked beans in a slow cooker with a spoon.

Slow Cooker Boston Baked Beans Recipe

This Slow Cooker Boston Baked Beans recipe is everything baked beans should be: thick, saucy, savory with a touch of sweet. Come see how I made the classic Boston Baked Beans recipe easier by making it in the slow cooker!
Course Side Dish, slow cooker
Cuisine American
Keyword beans, potluck, slow cooker
Prep Time 12 hours
Cook Time 12 hours
Total Time 1 day
Servings 12 servings
Calories 160kcal
Author Jillian - a Food, Folks and Fun original!


  • 1 pound navy beans picked over and soaked in cold water for 8 to 12 hours
  • ½ teaspoon baking soda
  • 2 bay leaves
  • 4 ounces thick sliced bacon
  • 1 medium onion minced
  • cup mild molasses + 2 additional tablespoons
  • cup packed dark brown sugar
  • 3 cups boiling water
  • 3 Tablespoons pure maple syrup optional
  • 1 Tablespoon Dijon mustard
  • 2 teaspoons cider vinegar
  • Salt and pepper


  • Turn slow cooker on high to preheat. Drain beans and pour them into large Dutch oven along with 8 cups water, baking soda, and bay leaves. Bring to boil over medium-high heat, and use a slotted spoon to skim foam off of the top. Boil 15 minutes.
  • While beans cook, chop bacon into 2-inch pieces, and in large non-stick skillet sauté bacon and onion over medium-high heat until fat is rendered from bacon and edges of onion begin to brown slightly about 7-8 minutes. Place bacon and onion in slow cooker. Stir in 1/3 cup molasses, brown sugar, and boiling water.
  • Once beans are done boiling, drain beans and transfer to slow cooker, discarding bay leaves. Give everything a good stir and place aluminum foil directly on the surface of beans, then cover slow cooker with lid. Set slow cooker to LOW and cook until beans are creamy and tender 10-12 hours.
  • Turn off slow cooker and remove the lid and discard aluminum foil. Stir in remaining 2 tablespoons molasses, maple syrup (optional), mustard, and vinegar. Season with salt and pepper to taste. Cover slow cooker lid and let beans sit until sauce has slightly thickened about 15-20 minutes. Serve.



Calories: 160kcal | Carbohydrates: 27g | Protein: 4g | Fat: 4g | Saturated Fat: 1g | Cholesterol: 6mg | Sodium: 131mg | Potassium: 335mg | Fiber: 4g | Sugar: 16g | Vitamin C: 1mg | Calcium: 60mg | Iron: 1.5mg