Onion Custard

Prep: 10 min Cook: 25 min Serves: 4 Cuisine: American

A comforting onion custard with sweet sautéed onions blended into a creamy, spiced egg mixture, perfect for a savory side or light main dish for any occasion.

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Ingredients

  • 6 medium onions, diced
  • 1/4 cup melted margarine
  • 2 eggs, beaten
  • 1 cup milk
  • 1 teaspoon salt
  • dash of pepper
  • dash of nutmeg

Instructions

  1. Simmer diced onions in melted margarine until golden, but not brown.
  2. Combine beaten eggs, milk, salt, pepper, and nutmeg in a bowl.
  3. Add the sautéed onions to the egg mixture and mix well.
  4. Pour the mixture into a greased 1-quart casserole dish.
  5. Bake in a 375°F (190°C) oven for about 25 minutes or until the custard is set.
  6. Serve hot.

Tips & Substitutions

For a richer flavor, consider using butter instead of margarine. You can also experiment with different types of onions; sweet onions will add a nice touch. If you want a lighter version, substitute low-fat milk and reduce the amount of margarine. Adding cheese like cheddar or Gruyère can enhance the dish further, giving it a creamy texture.

Serving Suggestions

This onion custard pairs beautifully with Dan'S Favorite Herbed Potatoes or a fresh salad. It can serve as a hearty side dish or a light main dish, especially for brunch. Consider topping it with fresh herbs like chives or parsley for added color and flavor.

Storage & Reheating

Leftover onion custard can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place it in the oven at 350°F (175°C) for about 15-20 minutes until warmed through. Alternatively, you can microwave individual portions for 1-2 minutes until hot.

Nutrition & Diet Analysis (per serving)

Each serving of Onion Custard contains roughly 661 calories, with 5g protein, 38g carbohydrates, and 56g fat. It is an excellent source of vitamin C (139% of the Daily Value) and dietary fiber (29% of the Daily Value), and a good source of potassium and protein. Note that it is relatively high in sodium, at 978mg per serving (43% of the Daily Value).

661 kcal 33% DV
Protein Fat Carbs

Macronutrients

Protein 5.3g 11% DV
Total Fat 56.5g 72% DV
Carbs 37.9g 14% DV
Fiber 8.3g 29% DV
Sugar 4g 8% DV

Electrolytes

Sodium 977.6mg 43% DV
Potassium 587.1mg 12% DV
Cholesterol 64.6mg 22% DV

Vitamins & Minerals

Vitamin A 44.4mcg 5% DV
Vitamin C 124.8mg 100% DV
Vitamin D 0mcg
Calcium 113.2mg 9% DV
Iron 1.8mg 10% DV
Diet fit High-fiber
Contains Milk Egg

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I make this dish ahead of time?

Yes, you can prepare the onion custard mixture a day in advance and store it in the refrigerator. Just pour it into the casserole dish and bake it when you're ready to serve. This can save you time, especially for gatherings.

What can I substitute for eggs in this recipe?

If you're looking for an egg substitute, you can use 1/4 cup of unsweetened applesauce or 1/4 cup of silken tofu blended until smooth per egg. This will help bind the ingredients while keeping the dish vegetarian.

Can I add other vegetables to this custard?

Absolutely! You can include vegetables like spinach, bell peppers, or mushrooms for added nutrition and flavor. Just sauté them along with the onions until tender before mixing them into the custard base.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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