Creamy Scalloped Potatoes with Mushroom Soup

4.83 from 39 votes

I love this creamy scalloped potatoes recipe for its creamy, savory, luscious goodness! You'll definitely want seconds just like my whole family!

Prep Time15

Cook Time1

Total Time1 15

Course: Side Dish

Cuisine: American

Servings: servings

Calories: 171kcal

Author: Sally

Preheat oven to 450F.
Peel and slice the potatoes (⅛-inch thickness). Using a mandolin slicer can be quite handy and a nice time saver for this process. Peeling and slicing should take about 10 minutes depending on your skill level (and potential helpers you have in the kitchen).
Next, you will want to add all the ingredients besides the potatoes and butter to a medium-sized bowl and mix together thoroughly with a fork or whisk.
With the softened butter, coat the bottom and sides of a 8 x 8 casserole dish.
You will prepare the dish for the oven by layering half of the potatoes in an overlapping fashion in the buttered casserole dish, trying not to lie any of them flat on the bottom. This is not a science, however, and it’s really hard to mess it up. You just want the potatoes to slightly overlap and be somewhat even overall.
After layering half of the sliced potatoes, you will then cover them with half of the sauce mixture. Then you will layer the other half of the sliced potatoes and top with the remaining sauce.
Before putting in the oven, you will cover with a lid or foil.
Bake for 45 minutes covered.
Uncover and check doneness level with a fork or knife. Cook uncovered 15 more minutes or until potatoes are done and top is browned.

The potatoes take awhile to cook, so make sure to cover during the main cooking phase. This helps the potatoes cook faster since the steam builds up over the cover to soften the potatoes. The cover also helps prevent splattering of the liquid out into the oven.

Make sure to blend the sauce well before pouring over the potatoes, so that the flavors are evenly distributed through the dish.

Using a mandolin slicer can be quite handy and a nice time saver for this process. Peeling and slicing should take about 10 minutes depending on your skill level (and potential helpers you have in the kitchen).