Gluten Free Au Gratin Potatoes is a cheesy comfort food casserole.   This potatoes casserole can be added as a side dish any day of the week.

This tasty casserole dish is loaded with potatoes and cheddar cheese.

The base of the creamy sauce is butter, gluten free flour, almond milk and some seasonings.   I have to limit my dairy so Gluten Free Au Gratin Potatoes is a dairy reduced recipe.

This recipe yields 6 – 8 servings.

Printable Recipe Card with a Full List of Ingredients and Instructions is Located at the Bottom of the Post.

Be sure to read through the entire post so that you don’t miss out on any important tips and tricks!

To begin making Gluten Free Au Gratin Potatoes I washed some russet potatoes and then sliced them thinly. I did not peel my potatoes but you can if you prefer.

This step can be time consuming but I use a mandoline slicer and that really speeds up the process and keeps them uniform.

After slicing enough potatoes to measure about 5 cups, I melted some butter in a large skillet over medium heat.

Once the butter melted I stirred in some Bob’s Red Mill 1 to 1 Gluten Free Baking Flour to make a paste.

I also stirred in some dry mustard, salt and pepper.

Next, I slowly poured in some almond milk while stirring to combine.

I stirred the milk mixture occasionally until it began to boil and thicken.  Then I turned off the heat.

Then I grated some cheddar cheese.

I added the cheddar cheese to the thickened sauce.

Then I stirred until all the cheese had melted before adding in some diced onion.

Once the onion was stirred in well I added the potatoes I had prepared earlier and stirred until they were well coated with the cheese sauce.

Then I scraped the potatoes into a greased 2.8 litre casserole dish.  You need at least the 2 litre size.

I covered the casserole before baking.

To bake I placed the casserole dish in a preheated 400F oven for 1 hour.

After an hour I removed the lid. 

I returned the casserole to the oven again for another 35 minutes.

Then I took the baking dish out of the oven. 

This potato dish will be very hot so you may want to wait a couple of minutes before serving.

Use a large spoon to serve up delicious servings, being sure to include the browned cheese on the sides of the casserole dish!

Gluten Free Au Gratin Potatoes is the perfect side dish to satisfy the appetites of young and old alike!

Printable Recipe Card with a Full List of Ingredients and Instructions is Located at the Bottom of the Post.

More Side Dishes You Will Love…

 

PRINTABLE VERSION OF THE RECIPE CAN BE FOUND AT THE BOTTOM OF THE PAGE

Ingredients You’ll Need to Make these Gluten Free Au Gratin Potatoes:

• 6 russet potatoes or enough to make about 5 cups
• 1/4 cup butter
• 3 tbsp Bob’s Red Mill 1 to 1 Gluten Free Baking Flour
• 1 tbsp corn starch
• 1 tsp dry mustard
• 1 tsp salt
• 1/4 tsp pepper
• 2 1/2 cups almond milk
• 1 1/2 cups shredded cheddar cheese
• 1/3 cup chopped onion

How to Make Gluten Free Au Gratin Potatoes:

1. Preheat oven to 400F and grease a 2 – 3 litre casserole.
2. Wash the potatoes.
3. Thinly slice the potatoes. I use a mandoline slicer.
4. Melt the butter in a large skillet or sauce pan over medium heat.
5. Once melted stir in the gluten free flour and corn starch to make a paste.  
6. Stir in the dry mustard, salt and pepper
7. Gradually pour in the milk.
8. Continue cooking over medium heat stirring until it boils and thickens. Turn off the heat.
9. Shred the cheese and add it to the milk mixture. Stir until melted.
10. Dice the onion and add it to the mixture.
11. Add the sliced potatoes and stir to coat.
12. Scrape the potatoes into the prepared casserole dish.
13. Cover and bake in the 400F oven for 1 hour.
14. Remove lid and continue to bake for another 35 minutes.
15. Remove from oven.
16. Serve and enjoy!

FAQS:

How do I store leftover gluten free au gratin potatoes?

To store leftover gluten free au gratin potatoes, follow these steps:

1. Allow the potatoes to cool: Let the au gratin potatoes cool completely at room temperature before storing them. This helps prevent bacterial growth and maintains their texture.
2. Divide into portions: If you have a large batch of au gratin potatoes, consider dividing them into smaller portions for easier storage and reheating. This will also help preserve their quality.
3. Use airtight containers: Transfer the cooled au gratin potatoes into airtight containers. Glass or plastic containers with tight-fitting lids work well. Alternatively, you can also use resealable plastic bags.
4. Label and date: To keep track of the storage time, label the containers or bags with the date of storage. This will help you identify the freshness of the leftovers later.
5. Refrigerate promptly: Place the containers or bags in the refrigerator as soon as possible. Refrigeration slows down bacterial growth and helps maintain the quality of the potatoes. Aim to store them within two hours of cooking.
6. Store in the refrigerator: Keep the au gratin potatoes in the refrigerator at a temperature of 40°F (4°C) or below. The colder temperature will help preserve them for a longer period.
7. Consume within a few days: Leftover au gratin potatoes are best consumed within 3-4 days of refrigeration. After this time, the quality and taste may start to deteriorate.

When you’re ready to enjoy the leftovers, you can reheat them in the oven or microwave. If using the oven, preheat it to around 350°F (175°C), place the potatoes in a baking dish, cover with foil, and warm them until heated through. If using the microwave, transfer the potatoes to a microwave-safe dish, cover with a microwave-safe lid or plastic wrap, and heat in intervals, stirring occasionally, until thoroughly heated. Always ensure the potatoes reach a safe internal temperature before consuming.

What should I serve with gluten free au gratin potatoes?

When serving gluten-free au gratin potatoes, you can pair them with a variety of dishes to create a well-rounded and satisfying meal. Here are a few ideas:

1. Roasted Vegetables: Serve the au gratin potatoes alongside a medley of roasted vegetables such as carrots, Brussels sprouts, and zucchini. Season them with herbs, olive oil, salt, and pepper for added flavor.
2. Grilled Chicken or Fish: Complement the creamy potatoes with a lean protein like grilled chicken breast or a piece of grilled fish. Season the protein with herbs, lemon juice, and garlic to enhance the overall taste.
3. Green Salad: Balance the richness of the potatoes with a fresh green salad. Toss together mixed greens, cherry tomatoes, cucumber slices, and your favorite gluten-free salad dressing.
4. Steamed Asparagus: Steam some asparagus spears and serve them as a side dish. Drizzle a little lemon juice and sprinkle grated Parmesan cheese over the asparagus for extra flavor.
5. Sautéed Spinach: Lightly sauté spinach with garlic and olive oil. It adds a nutritious element to the meal and complements the creamy potatoes nicely.
6. Grilled Vegetarian Patties: If you prefer a vegetarian option, serve the au gratin potatoes with grilled vegetarian patties made from ingredients like black beans, chickpeas, or lentils. These patties can be easily made gluten-free and provide a satisfying protein source.

Remember to check the ingredients of all the dishes you choose to ensure they are gluten-free, especially if you’re purchasing pre-made items or using sauces and seasonings.