Potatoes Mashed With Caramelized Onions Recipe

Name: Potatoes Mashed With Caramelized Onions
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: onion; 1 tablespoon olive oil; 2 tablespoons butter; 6 cups sweet onions, sliced thin; salt; 1 tablespoon sugar; 1 tablespoon sherry wine vinegar; ½ cup chicken broth; ground pepper; potato; 3 lbs yukon gold potatoes, peeled and cut into even size pieces; ¾ cup buttermilk (or more); ¼ cup melted butter; salt and pepper; ½ cup grated asiago cheese

Servings: persons

onion
1 tablespoon olive oil
2 tablespoons butter
6 cups sweet onions, sliced thin
salt
1 tablespoon sugar
1 tablespoon sherry wine vinegar
½ cup chicken broth
ground pepper
potato
3 lbs yukon gold potatoes, peeled and cut into even size pieces
¾ cup buttermilk (or more)
¼ cup melted butter
salt and pepper
½ cup grated asiago cheese

1
Heat oil and butter in a large skillet.
2
Add onions and salt and saute until the onions begin to soften.
3
Sprinkle in the sugar, turn the heat to medium-low and continue to cook, stirring occasionally until the onions turn golden brown.
4
Stir in the vinegar and stock and raise the heat to high.
5
Reduce until the stock is almost gone.
6
Season with salt and pepper.
7
Remove from heat.
8
While the onions are cooking, cook the potatoes in boiling salted water until tender.
9
Drain well and let dry on the turned off burner.
10
Mash the potatoes and beat in buttermilk and butter.
11
Add more buttermilk if needed to make them creamy.
12
Season with salt and pepper.
13
Preheat the oven to 375F.
14
Butter a large gratin dish.
15
Layer 1/3 of the potatoes then 1/2 the onions.
16
repeat the layering ending with potatoes.
17
Sprinkle with Asiago and bake for 20-25 min until the top is browned and the potatoes are hot.
18
Can be made ahead and heated when needed.

1018

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 15 ingredients. The key ingredients include: onion, 1 tablespoon olive oil, 2 tablespoons butter, 6 cups sweet onions, sliced thin, and more.

Yes, Potatoes Mashed With Caramelized Onions falls under the Soups & Stews category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

That's it — enjoy your meal!

Potatoes Mashed With Caramelized Onions

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions