Preheat the oven to 350°F, and grease an 8 x 8, 9 x 9 - inch, or 2.5 quart baking dish. Set aside.
Bring a large pot of lightly salted water and potatoes to a boil. Cook until the potatoes are just barely fork tender, about 12 to 15 minutes . Drain the water, and transfer the potatoes to an ice bath. When they’re cool enough to handle, gently remove the skins, and slice into ¼ - inch thick slices.
2 pounds gold potatoes
While the potatoes cook, make the sauce. Heat a medium skillet over low to medium heat. Add the butter, and allow it to melt. Once melted, add the flour. Whisk for 2 to 3 minutes, then while whisking, add the heavy cream and milk. Continue to whisk until smooth, then pour in the onion soup mix. Whisk to combine.
3 tablespoons unsalted butter, 3 tablespoons all-purpose flour, 1 cup heavy cream, ½ cup whole milk, 1 ounce onion soup mix
When the mixture begins to thicken slightly and steam, slowly begin to add 1 cup of the cheese, whisking between each addition. Remove from heat.
Place a third of the potatoes into the baking dish, followed by a third of the onions. Top with a third of the cheese sauce. Repeat with the remaining potatoes, onions, and cheese sauce, then sprinkle the remaining ½ cup of cheese over the top.
1 ½ cups white onion
Bake uncovered for 25 to 30 minutes or until the potatoes are cooked through. Serve hot, and store leftovers in the refrigerator for 3 days.
Notes
The calories listed are an approximation based on the ingredients in the recipe card and a serving size of 1/2-cup of the French onion potato bake. Actual calories will vary.For more information and tips, please refer to the post.
Nutrition Facts
French Onion Potato Bake
Serving Size
0.5 cup
Amount per Serving
Calories
185
% Daily Value*
Fat
12
g
18
%
Saturated Fat
7
g
35
%
Trans Fat
0.1
g
Polyunsaturated Fat
1
g
Monounsaturated Fat
3
g
Cholesterol
37
mg
12
%
Sodium
258
mg
11
%
Potassium
311
mg
9
%
Carbohydrates
14
g
5
%
Fiber
2
g
8
%
Sugar
2
g
2
%
Protein
6
g
12
%
Vitamin A
416
IU
8
%
Vitamin C
12
mg
15
%
Calcium
158
mg
16
%
Iron
1
mg
6
%
* Percent Daily Values are based on a 2000 calorie diet.