Garlic Herb Potatoes Au Gratin

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Looking for an easy and flavorful side dish? These Garlic Herb Potatoes Au Gratin are the perfect side for any occasion! Thinly sliced potatoes baked in a luxurious creamy cheesy herb and garlic sauce. What more could you want?

Overhead view of garlic herb potatoes au gratin on a plate, garnished with fresh parsley and black pepper.

The plain potato just got upgraded! Thinly sliced potatoes baked in a creamy, cheesy, and flavorful sauce and the best part is it’s easier to make than you think.

It’s a family favorite dish that goes perfectly with Sunday dinner or any special occasion. Just like this Loaded Mashed Potatoes Casserole (think twice baked potatoes in casserole form) or this Easy Mushroom Risotto.

Tell Me More About Garlic Herb Potatoes Au Gratin

  • Make ahead friendly!!
  • No roux needed for this recipe
  • Those crispy cheese edges- they are the best
  • Feels so fancy, but shhh, it’s so easy to make
  • Easy to change things up and make it your own
Ingredients for potatoes au gratin.

Ingredient List

POTATOES: These will be sliced to about 1/8 inch thick
CHEESE: I am using a medium cheddar and Parmesan. Please grate your own cheese so it melts properly.
HERBS: I am using chopped parsley, thyme, and rosemary. They all pair very nicely with the potatoes and cheese.

GARLIC
CREAM
SALT AND PEPPER:
Be sure to use plenty of salt because potatoes love and need plenty of salt

Six photos showing the steps to make these potatoes.

How To Make This Delicious Side Dish

It really is straight forward and easy to make this comforting and delicious dish. Layer thinly sliced potatoes with cheese, herbs, and garlic. Don’t forget to liberally salt each layer. Pour the cream over the entire dish.

Cover with foil and bake at 425 degrees F for 50 minutes. Remove the foil and bake for 10 minutes or until lightly golden.

Overhead view of potatoes fresh from the oven. Two sprigs of fresh thyme on top.

Tips and Suggestions

  • It is important to uniformly slice your potatoes so they cook evenly. Use a mandoline if you don’t like the thought of slicing by hand.
  • Please grate your own cheese. Pre-shredded is coated in an anti-caking powder making it hard to melt smoothly.
  • Feel free use a different cheese if you prefer. Some suggestions are: Gruyère, mild, medium or sharp cheddar. These are the flavorful melting cheeses. You can also add other cheeses for more flavor just make sure a Gruyère or cheedar are the bulk of the cheese used.
  • Feel free to use different herbs if you prefer.

FAQs

WHAT IS THE BEST POTATO FOR POTATOES AU GRATIN?

There is a great debate about this question. Some say only to use waxy potatoes and some prefer only to use russets. I like russets for my recipe because the starch helps create a creamy sauce.

CAN I USE HALF AND HALF OR MILK INSTEAD OF HEAVY CREAM?

You can try but I can’t guarantee success. The heavy cream is necessary to create a rich thick sauce and luxurious mouthfeel.

CAN POTATOES AU GRATIN BE MADE AHEAD OF TIME?

Assemble and cover with foil. Refrigerate overnight. Pull from the refrigerator at least 20 minutes before baking. May need to add additional baking time.

Overhead view of garlic herb potatoes au gratin with a spoon scooping out a serving. Shows how creamy it is.

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Garlic Herb Potatoes Au Gratin
Prep Time
20 mins
Cook Time
1 hr
Total Time
1 hr 20 mins
 

Looking for an easy and flavorful side dish? These Garlic Herb Potatoes Au Gratin are the perfect side for any occasion! Thinly sliced potatoes baked in a luxurious creamy cheesy herb and garlic sauce. What more could you want?

Course: Side Dish
Cuisine: American
Keyword: au gratin potatoes, potatoes au gratin
Servings: 10
Calories: 432 kcal
Author: Malinda Linnebur
Ingredients
  • 3 pounds (1.3kg) russet potatoes, peeled and sliced 1/8" thick
  • 8 ounces (225g) shredded cheddar cheese
  • cup (80g) grated Parmesan cheese
  • ¼ cup (8g) chopped fresh parsley
  • 1 tablespoon minced fresh rosemary
  • 2 teaspoons fresh thyme leaves
  • 4-6 cloves garlic, minced
  • teaspoons salt
  • 2 cups (470ml) heavy cream
Instructions
  1. Preheat oven to 425°F. Grease a 9×13 baking dish with butter; set aside.

  2. In a small bowl combine the cheeses, herbs, garlic, salt, and pepper to taste; set aside.

  3. Layer ½ of the sliced potatoes in prepared baking dish. Sprinkle with ½ of the cheese mixture. Layer with remaining potatoes and sprinkle with remaining cheese mixture. Pour cream all over the potatoes. Cover with foil and bake for 50 minutes. Remove the foil and bake for 10 minutes or until lightly golden.

Recipe Notes
  1. MAKE AHEAD: Assemble and cover with foil. Refrigerate overnight. Pull from the refrigerator at least 20 minutes before baking. May need to add additional baking time. 
  2. STORAGE: Store in an airtight container in the refrigerator for up to 5 days. Reheat in the microwave until heated through.
Nutrition Facts
Garlic Herb Potatoes Au Gratin
Amount Per Serving
Calories 432 Calories from Fat 261
% Daily Value*
Fat 29g45%
Saturated Fat 18g113%
Polyunsaturated Fat 1g
Monounsaturated Fat 7g
Cholesterol 90mg30%
Sodium 796mg35%
Potassium 700mg20%
Carbohydrates 29g10%
Fiber 2g8%
Sugar 2g2%
Protein 14g28%
Vitamin A 1584IU32%
Vitamin C 17mg21%
Calcium 361mg36%
Iron 2mg11%
* Percent Daily Values are based on a 2000 calorie diet. Since different brands of ingredients have different nutritional information, the information shown is just an estimate.

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