Gratin of Vidalia Onions Recipe

Name: Gratin of Vidalia Onions
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 6 tablespoons butter, divided; 4 large vidalia sweet onions, halved lengthwise, then sliced 1/4-inch thick (4 lbs); 3 tablespoons flour; ½ teaspoon salt (to taste); ¼ teaspoon pepper (to taste); ¼ teaspoon dried thyme leaves; ¼ teaspoon freshly grated nutmeg; 1 cup half-and-half; ½ cup chicken broth; ¼ cup freshly grated parmigiano-reggiano cheese, plus 3 tbsp; 1 ½ cups moderately coarse soft breadcrumbs

Servings: persons

6 tablespoons butter, divided
4 large vidalia sweet onions, halved lengthwise, then sliced 1/4-inch thick (4 lbs)
3 tablespoons flour
½ teaspoon salt (to taste)
¼ teaspoon pepper (to taste)
¼ teaspoon dried thyme leaves
¼ teaspoon freshly grated nutmeg
1 cup half-and-half
½ cup chicken broth
¼ cup freshly grated parmigiano-reggiano cheese, plus 3 tbsp
1 ½ cups moderately coarse soft breadcrumbs

1
Preheat oven to 375 degrees F. Lightly butter a 2-qt gratin dish or shallow casserole.
2
Melt 2 tbsp butter in large skillet over medium-high heat.
3
Add onion and saute 10-12 minutes, stirring often, until soft.
4
Transfer to prepared casserole.
5
Melt 2 more tbsp butter in same skillet over medium heat.
6
Whisk in flour, salt, pepper, thyme, and nutmeg.
7
Combine half-and-half and broth and gradually whisk into skillet.
8
Whisk 2-3 minutes, or until thick and smooth.
9
Blend in 1/4 C Parmigiano, taste, and adjust seasonings.
10
Pour over onions, spreading evenly.
11
Melt remaining butter and quickly toss with remaining Parmigiano and breadcrumbs.
12
Scatter over top of gratin.
13
Bake, uncovered, in center of oven 20-25 minutes or until bubbling and browned.
14
Serve at once.

443

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.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

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 11 ingredients. The key ingredients include: 6 tablespoons butter, divided, 4 large vidalia sweet onions, halved lengthwise, then sliced 1/4-inch thick (4 lbs), 3 tablespoons flour, ½ teaspoon salt (to taste), and more.

Yes, Gratin of Vidalia 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!

Gratin of Vidalia Onions

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions