Golden Onion Casserole Recipe

Name: Golden Onion Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 6 medium yellow onions, thinly sliced; ½ cup butter, divided; ¼ cup flour; ½ teaspoon salt (optional); ¼ teaspoon white pepper; 2 cups whole milk, at room temperature; 2 tablespoons chicken bouillon granules (use 1 tablespoon if using double-strength cubes); ½ cup cooking sherry (or Burgundy, if serving with red meat); ¾ cup shredded cheese, mixed Gruyere and Swiss; 1 French bread or 1 onion-garlic baguette, cut in thin slices; 4 tablespoons melted butter

Servings: persons

6 medium yellow onions, thinly sliced
½ cup butter, divided
¼ cup flour
½ teaspoon salt (optional)
¼ teaspoon white pepper
2 cups whole milk, at room temperature
2 tablespoons chicken bouillon granules (use 1 tablespoon if using double-strength cubes)
½ cup cooking sherry (or Burgundy, if serving with red meat)
¾ cup shredded cheese, mixed Gruyere and Swiss
1 French bread or 1 onion-garlic baguette, cut in thin slices
4 tablespoons melted butter

1
Saute onions in 1/4 cup butter over medium heat about 15 minutes.
2
Transfer to a 2-quart baking dish.
3
In a large saucepan over low heat, melt remaining 1/4 cup butter.
4
Whisk in flour.
5
Stir 2 minutes, until mixture starts to turn gold.
6
Add salt, pepper, milk and bouillon; stir until thickened.
7
Stir in sherry and cook for 6 to 7 minutes.
8
Pour over onions and sprinkle with cheese.
9
Brush bread slices with melted butter and place over the onion dish, covering completely.
10
(You may omit the bread if serving other bread or starch items alongside.)
11
Bake at 350 degrees for 30 minutes, until bread is browned.

589

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 medium yellow onions, thinly sliced, ½ cup butter, divided, ¼ cup flour, ½ teaspoon salt (optional), and more.

Yes, Golden Onion Casserole falls under the Meat & Poultry 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!

Golden Onion Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions