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5 from 5 votes

Rutabaga Au Gratin

This recipe for Rutabaga Au Gratin is everything you would hope for in a casserole-style dish: creamy, cheesy, and comforting. Topping the creamy rutabaga with almond flour breadcrumbs lends a buttery, nutty flavor, as well as a crispy, gluten free texture to this often overlooked and under-appreciated vegetable.
Prep Time10 minutes
Cook Time1 hour
Total Time1 hour 10 minutes
Course: Side Dish
Cuisine: American, Gluten Free, Low Carb
Diet: Diabetic, Gluten Free
Servings: 8 servings
Calories: 326kcal

Ingredients

  • 2 tablespoons butter (divided)
  • 1 shallot (finely diced)
  • 2 cloves garlic (minced)
  • 1 cup heavy cream
  • 1 tablespoon fresh thyme (plus more for garnish)
  • salt (to taste)
  • pepper (to taste)
  • 2.5 pounds rutabaga (trimmed, peeled and cut into 1/2-inch slices)
  • 1.5 cups gruyere cheese (and/or cheddar, shredded)
  • 1/2 cup blanched almond flour

Instructions

  • Preheat oven to 400°F.
  • Melt 1 tablespoon of the butter over medium heat in a medium size skillet and add the shallot and garlic. Cook for 2-3 minutes, or until the shallot is softened.
  • Stir in the heavy whipping cream, thyme, salt and pepper and cook for 1-2 minutes until hot and bubbly.
  • Place a layer of rutabaga slices into the bottom of a medium size casserole dish. Pour half the hot cream mixture over the first layer of rutabaga. Top with 1/2 cup of the cheese.
  • Top with the remaining slices of rutabaga. Pour on the remaining cream and top with the remaining cheese.
  • Melt the remaining 1 tablespoon of butter and stir into the almond flour with a fork until it resembles crumbs. Spread the almond flour crumbs over the rutabaga.
  • Cover and bake for 1 hour, or until the rutabaga is fork-tender and the crumb topping is lightly browned. Remove the cover and place under the broiler for 1-2 minutes to brown the top even more, if desired.
  • Garnish with additional fresh thyme, if desired.

Notes

Tips and Techniques

  • Buy rutabagas when ripe. They will usually have a slight purple coloring to them. Avoid rutabagas with any green shoots coming out of the top as these are likely over-ripe.
  • You can use regular breadcrumbs instead of almond flour and butter, if preferred. You can also omit them all together.
  • Store leftovers tightly covered or in an airtight container in the refrigerator. Consume within 3-4 days.
** Nutritional information is an estimate and may vary.

Nutrition

Serving: 1serving | Calories: 326kcal | Carbohydrates: 16g | Protein: 11g | Fat: 26g | Saturated Fat: 14g | Trans Fat: 1g | Cholesterol: 76mg | Sodium: 112mg | Potassium: 494mg | Fiber: 4g | Sugar: 7g | Vitamin A: 804IU | Vitamin C: 38mg | Calcium: 352mg | Iron: 1mg