3-Cheese Potatoes Au Gratin
3-Cheese Potatoes Au Gratin is an easy cheesy favourite potato recipe! Thinly sliced potatoes and onions are smothered in a quick 3-cheese sauce and baked until golden. This 3-Cheese Potatoes au Gratin is a perfect side dish for any holiday meal such as Easter, Christmas or even family dinner.
Ingredients
- 2 1/2 lbs Red Potatoes, peeled and sliced
- 1 Large Onion, sliced
- 3 Tablespoons Unsalted Butter
- 3 Tablespoons All Purpose Flour
- 1 Teaspoon Dry Mustard Powder
- 2 Cups Milk
- 1 Cup Cheddar Cheese, shredded
- 1/2 Cup Gruyere Cheese, shredded
- 1/2 Cup Asiago Cheese, shredded
- Salt and Pepper, to taste
- Parsley, to garnish
Instructions
- Preheat oven to 400 degrees F.
- Wash and peel the potatoes. Slice the potatoes 1/8 inch thin and place in a bowl for now. Also, slice the onion into half moons very thinly.
- Layer potatoes and onions in little stacks. Place stacks upright in a greased casserole 2.5qt to 3qt dish.
- Melt butter in a medium sauce pan, once melted, add the flour and whisk vigorously over medium heat for about 2-3 minutes. Then, slowly add in the milk a little bit at a time while continuing to whisk.
- Remove the roux from heat and add in the cheese, salt, pepper and dry mustard powder. Whisk in the cheese and spices until a thick, creamy and cohesive cheese sauce forms.
- Pour over the cheese sauce over the potatoes in the casserole dish evenly. Place tin foil on top of the baking dish and bake for 1 hour covered with tinfoil and then 30 minutes uncovered.
- Cool the potatoes for 15 minutes before digging in then garnish with parsley. Enjoy! :)
Video
Notes
u003cliu003eThese Potatoes au Gratin are best served right away but to reheat either microwave for 2 minutes on low or you can place the baking dish in the oven on low to slightly warm them through.u003c/liu003e
Nutrition
Calories: 300kcal
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