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creamy broccoli cheddar potatoes au gratin
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Think broccoli cheddar soup marries scalloped potatoes, and they live happily ever after in your belly.
Prep Time 30 minutes
Cook Time 1 hour 30 minutes
Total Time 2 hours
Course Side Dish
Servings 8

Ingredients
  

  • 6-8 medium russet potatoes, thinly sliced (1/8 inch)
  • 4 cups broccoli florets
  • 4 tbsp butter
  • 3 cloves garlic, minced
  • 1 tbsp fresh thyme, chopped
  • 1/4 cup all purpose flour
  • 1 1/2 cups whole milk
  • 1/2 cup heavy whipping cream
  • 3 cups shredded cheddar cheese
  • 1 cup shredded fontina cheese

Instructions
 

  • Preheat oven to 375 degrees. Lightly grease a large casserole dish with butter or oil.
  • Melt butter in a medium sauce pan. Saute garlic and thyme for 2-3 minutes until fragrant and golden. Whisk in the flour until no clumps remain, about 30-60 seconds. Slowly stream in the milk and heavy cream and bring to a gentle simmer. Heat 4-5 minutes until slightly thickened. Stir in the fontina and half of the cheddar cheese. Taste for salt and pepper. Remove from heat.
  • Scoop 1/2 cup of the cheese sauce into the bottom of the casserole dish. In a single layer, arrange the potato slices. Top with the broccoli florets. Pour the rest of the cream sauce overtop. Sprinkle with cheddar cheese.
  • Cover the casserole dish with foil. Bake 50-55 minutes. Remove the foil and bake an additional 30-35 minutes until the potatoes are tender and the cheese golden and bubbly. Let cool 5 minutes on the counter before scooping and serving.

Notes

*To make ahead: Prep the gratin through step 3. Store covered in the fridge for up to 72 hours. Bring to room temperature before baking.
Keyword au gratin, broccoli cheddar, side dish, sweet potatoes, thanksgiving, vegetarian