Honestly, I just don’t know many things that taste better than the crispy, cheesy potatoes on the top of this Three Cheese Au Gratin Potato dish…
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This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

This is definitely comfort food, made from scratch like grandma used to make.

This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

Always start with all the best ingredients, fresh Yukon gold potatoes, sharp cheddar, colby jack and Parmesan cheese, green onions and milk.

This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

Of course feel free to improvise when it comes to cheese, I do. For instance when I want to spice things up, I substitute the jack cheese for pepperjack.

This recipe is actually very easy, but if there were a tricky part it would be making the sauce, seeing pictures should help you out.

A “Roux” is a French word pronounced ‘roo’. A roux thickens sauces and is usually a combination of butter and flour. Helpful hint: if you want the sauce to thicken a little quicker, warm milk before adding to roux.

This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

Sorry, I have to be a food snob here, if you use packaged pre-shredded cheese your sauce will come out clumpy and oily…true story. So please grate your own cheese.

You can slice your potatoes with a knife or use a food processorit is quicker and you can use it for the cheese too!

This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

Don’t worry that the sauce does not cover all the potatoes! It spreads out as it cooks, I promise.

This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

After 20 minutes of cooking you can see that the cheese sauce has spread out and is beginning to brown. And after 50 minutes…perfection!

This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

This same cheese sauce can be used over steamed vegetables or cooked pasta for homemade macaroni and cheese.

The Recipe: Three Cheese Au Gratin Potatoes

4.5 from 2 votes
Three Cheese Au Gratin Potatoes
Prep Time
20 mins
Cook Time
50 mins
Total Time
1 hr 10 mins
 

A delicious creamy potato side dish. The recipe below is for four and is made in an 8x8 baking dish. If feeding a larger group, double recipe and use a 13 x 9 inch glass baking dish.

Course: Side Dish
Cuisine: American
Keyword: easy side dish recipe, holiday recipe, kid-friendly recipes
Servings: 4 servings
Author: Linda Spiker
Ingredients
  • 4-5 med russet or Yukon gold potatoes peeled and sliced
  • 1 cup milk
  • 1 cup jack cheese freshly grated
  • 1 cup sharp cheddar freshly grated
  • ½ cup Parmesan freshly grated
  • 2 T butter
  • 2 tsp flour
  • 6 green onions sliced
  • 2 tsp sea salt
  • 1 tsp freshly ground pepper
Instructions
  1. Preheat oven to 375 degrees and place oven rack in center position.
  2. Grate all cheeses and toss together.
  3. Set milk in a pan and warm.
  4. Peel and thinly slice your potatoes, set aside.
  5. In a large saucepan on medium heat melt butter, add salt and pepper.
  6. Add flour to melted butter and whisk. This is your roux, it will thicken your cheese sauce.
  7. Slowly add warm milk to the roux, continually whisking and heat until mixture begins to thicken.

  8. When milk is thickened, add cheese a handful at a time (retaining the ½ cup for later) whisk cheese, slowly adding more as each handful melts.
  9. When cheese is completely melted and sauce is smooth turn off heat.
  10. Place a layer of potatoes in 8x8 glass baking dish, sprinkle with freshly ground pepper, a little sea salt and sliced green onions. Drizzle some cheese sauce over potatoes. Don’t worry about covering every nook and cranny, the cheese sauce will spread out as the potatoes bake. Repeat layering (potatoes, salt, pepper, onions) two more times or until all potatoes and cheese sauce are used. Again, don’t worry if potatoes are not completely covered with sauce. As they bake the sauce thins out, melts and covers any empty spots. Sprinkle reserved cheese over the top. Bake for 50 minutes or until potatoes are soft and cheese sauce is browned and crispy on top. Sorry, I just drooled a little.

This 3 cheese Au Gratin Potatoes dish is easy to make and is one of my favorite side dishes. This cheesy potato casserole has layers of thin potatoes topped with a homemade cheese sauce and is baked until browned and bubbly! Pretty enough for guests, easy enough for any day of the week!

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Post tags: holiday, holidays, side dish,