Potato Gratin with Beer Cheese Sauce

Potato Gratin with Beer Cheese Sauce will knock your socks off! The delicious flavor of this hot potato side dish is unusually unique! You'll love it!

*Disclaimer - This recipe was originally published in 2013. I'm working hard to update all my older recipes with recipe cards, new photos, and additional recipe information. But, getting to all of them will take time. Please bear with me. In the meantime let me assure you that this recipe is still a winner and one I'm sure you'll be well pleased with when you make it at home.

You know what it's like...you're standing in line at the grocery store checkout so you start to flip through all those tempting magazines in the stands while you're awaiting your turn to unload your stockpile.

You know you really want to reach for that glossy Kardashian/Alien Zombie baby cover one (no, I didn't really, LOL), but instead, you reach for a small publication called "Cooking With Beer."

That is where I found this recipe. Of course, I fooled and played with it, but the original concept was birthed right there in the grocery store checkout lane. Eeeewwww. LOL!

Sadly, I don't have any "beauty shots" of this final dish, but can I tell you something?

Once it was allowed to cool slightly (approximately 15 minutes) it served up beautifully when sliced into lovely, layered squares and made quite a fancy presentation!

This recipe also allowed me to use my, never before used, mandolin.

The one that's been patiently waiting its turn in the kitchen drawer for the past several years.

The one that I realized is really, really fun to play with.

The one that I'll be using soon to make all sorts of potato, beet chips, and veggie chips.

This recipe is not hard to make but it is slightly time-consuming, so make sure you plan accordingly.

I made mine for a backyard BBQ we'd had so I made it in advance and partially baked it off in the oven before I completed the baking on the outdoor grill after our company had arrived.

It worked like a dream and this dish got rave reviews from all!

Sadly, there were no leftovers (which explains the reason for no beauty shots).

I encourage you to make this dish if you're looking to WOW your family and friends with superior taste and presentation!

It's a real show stopper!

POTATO Gratin with Beer Cheese Sauce  {PRINT THIS RECIPE}


18 ounces  (1 ½ bottles) of your favorite beer (the other half a bottle is a nice treat for the cook)
1 sprig of thyme, plus 3 tablespoons of chopped thyme
2 small bay leaves
1 cup half and half
2 tablespoons all-purpose flour
1 egg
3 cloves garlic, minced
3 pounds of Idaho potatoes, scrubbed
Ice water
1 teaspoon salt, divided
1 teaspoon freshly cracked black pepper
2 cups (8 ounces) shredded Gruyere cheese
2 cups (8 ounces) shredded Emmenthaler cheese
3 tablespoons butter, softened

-In a small saucepan over medium heat, bring the beer, thyme sprig, and bay leaf to a simmer.
-Reduce the heat to low and continue to simmer until the beer had reduced considerably (approximately 5 minutes, but watch this carefully as it has a tendency to boil over).
-Turn off the heat and discard the bay leaf and thyme sprig.
-In a small bowl, whisk together the half and half flour, egg, and garlic.
-Stir the half and half mixture into the beer mixture and set aside while you prepare the potatoes.
-Using a mandolin or chef's knife, slice the potatoes as thin as possible into discs.
-Once the potatoes are sliced, place them into a large bowl of ice water, stirring to separate the slices, and to remove some of the starch in order to keep the potatoes from turning colors.
-Remove the potatoes from the water using a slotted spoon and dry them on paper towels (you'll be working in batches, so no need to do all the potatoes at one time). Replace the paper towels as needed.
-Prepare a 9x13 baking dish with a liberal coating of butter on the bottom and sides of the pan.
-Start the layering process by starting with overlapping slices of potatoes to evenly cover the entire bottom of the dish.
-Sprinkle with half the salt, pepper, and chopped thyme.
-Pour ½ of the beer mixture over the first layer of potatoes.
-Layer ½ of the cheese mixture over the potatoes and beer.
-Repeat the layers of potatoes, beer mixture, seasonings, thyme, and cheese.
-Dot the top with butter.
-Cover and bake in a preheated (400 degree) oven for 30 minutes.
-Uncover and continue baking for an additional 30-35 minutes until the cheese is browned and bubbly.
-Allow to cool and serve OR cool, refrigerate and reheat on the outdoor grill on medium heat until it's even deeper browned and heated through. Allow it to cool slightly before slicing and serving.

If you have a favorite beer you enjoy, by all means, use it.

I'm not that much of a beer drinker so I just used what was in the fridge. Shhhhh. Don't tell *wink*

Whatever your preference for beer, you need to make this dish... It's D-LISH!