Slow Cooker Broccoli Au Gratin
4.75 from 8 votes

Slow Cooker Broccoli Au Gratin

Prep Time20 mins
Cook Time4 hrs
Total Time4 hrs 20 mins
Course: Side Dish
Cuisine: French
Keyword: broccoli, casserole
Servings: 4 -6
Calories: 911kcal
Author: Bernadette Martin


  • 6 cups finely chopped broccoli
  • 2 cups light cream
  • 2 cups shredded mild cheddar cheese
  • 1 cup chicken broth
  • 1 cup panko breadcrumbs
  • 1/2 cup chopped yellow onion
  • 1/2 cup shredded aged Gouda cheese - or Parmesan cheese
  • 2 cloves garlic - minced
  • 4 tablespoons flour
  • 4 tablespoons butter - melted
  • 1/2 teaspoon salt
  • 1/4 teaspoon ground nutmeg
  • 1/8 teaspoon fresh ground black pepper
  • additional salt and pepper to season breadcrumbs


  • Chop all the vegetables and combine in a slow cooker. Add the chicken broth. Whisk together the light cream and flour with a fork, pressing the back of the fork against the measuring cup to break up the little crumbs of dry flour. Add cream/flour mixture to the broccoli mixture and stir. Add salt, nutmeg, and black pepper, stir again. Add cheeses and stir once more.
  • Combine the panko breadcrumbs and melted butter in a bowl, add salt and pepper to taste, mix well. Spoon the breadcrumb mixture over the top of the broccoli mixture.
  • Set the slow cooker to high and cook for 3-4 hours, or on low for 6-8 hours. Turn slow cooker off and allow to sit for about 10 minutes before transferring to a serving dish.