Delia Smith’s Onion Sauce is made with onion, butter, sauce flour or plain flour, mustard powder, milk, gammon stock, grain mustard, salt, and freshly milled black pepper. This tasty onion sauce recipe creates a delicious accompaniment that takes about 35 minutes to prepare and can serve up to 4 people.
Delia Smith Onion Sauce Ingredients
- 1 large onion, peeled and chopped
- 40g (1.4 oz) block butter, cut into chunks
- 25g (0.9 oz) sauce flour or plain flour
- 1 heaped teaspoon mustard powder
- 175ml (6 fl oz) milk
- 175ml (6 fl oz) gammon stock
- 1 heaped teaspoon grain mustard
- Salt and freshly milled black pepper
How To Make Delia Smith Onion Sauce
- Melt the Butter and Cook the Onion: Melt 25g (1.4 oz) of the butter in a saucepan and add the onion. Stir to coat the onion in butter, then cook on low heat for about 20 minutes, stirring occasionally to prevent coloring.
- Add Flour and Mustard Powder: Stir in the sauce flour and mustard powder until smooth. Gradually add the milk, stirring constantly. Increase the heat to medium and gradually add the stock, stirring after each addition.
- Simmer the Sauce: Turn the heat down to low and let the sauce simmer gently for 5 minutes.
- Finish the Sauce: Stir in the grain mustard, the remaining butter, and seasoning. Pour into a warmed serving jug.
- Serve: This sauce is excellent with boiled gammon or a bacon joint.
Recipe Tips
- Cook the Onion Gently: Keep the heat low when cooking the onion to prevent it from browning. Stir occasionally to ensure it softens evenly and absorbs the butter.
- Add Flour and Mustard Powder Gradually: Mix in the flour and mustard powder until smooth before adding the milk. This helps avoid lumps in the sauce.
- Incorporate Milk Slowly: Add the milk a little at a time, stirring constantly to ensure a smooth and creamy consistency.
- Gradually Add Stock: Increase the heat to medium and pour in the stock slowly, stirring after each addition to fully blend the flavors and prevent clumping.
- Simmer Gently: Let the sauce simmer on low heat to thicken and develop flavor. Avoid boiling, as this can affect the texture and taste of the sauce.
What To Serve With Onion Sauce?
This creamy onion sauce pairs well with boiled gammon, a bacon joint, mashed potatoes, or roasted vegetables. It can also be served alongside grilled meats, baked chicken, steamed green beans, or buttered noodles for a tasty dinner.
How To Store Leftovers Onion Sauce?
- Refrigerate: Let the leftover onion sauce cool to room temperature. Transfer it to an airtight container and store it in the refrigerator for up to 3 days.
- Freeze: Allow the sauce to cool completely before transferring it to a freezer-safe container. It can be frozen for up to 2 months. Thaw it in the refrigerator overnight before reheating.
How To Reheat Leftovers Onion Sauce?
- In The Oven: Preheat the oven to 180°C (350°F). Transfer the sauce to an oven-safe dish and cover it with foil. Heat for about 15 minutes, stirring halfway through.
- In The Microwave: Place the sauce in a microwave-safe container. Heat on high for 1-2 minutes, stirring halfway through. Check if it’s heated through before serving.
- On the Stove: Pour the sauce into a saucepan and reheat over low heat, stirring often for about 5-7 minutes until it’s heated through.
Delia Smith Onion Sauce Nutrition Facts
Serving Size: 1/4 cup (about 60 grams)
- Calories: 105
- Total Fat: 8g
- Saturated Fat: 5g
- Cholesterol: 25mg
- Sodium: 280mg
- Potassium: 125mg
- Total Carbohydrate: 8g
- Dietary Fiber: 0.5g
- Sugars: 4g
- Protein: 1g
Try More Delia Smith Recipes:
- Delia Chicken Soup
- Delia Smith Apple And Blackberry Crumble
- Delia Smith Sausage Rolls
- Delia Smith Eve’s Pudding Recipe
Delia Smith Onion Sauce
Description
Delia Smith’s Onion Sauce is made with onion, butter, sauce flour or plain flour, mustard powder, milk, gammon stock, grain mustard, salt, and freshly milled black pepper. This tasty onion sauce recipe creates a delicious accompaniment that takes about 35 minutes to prepare and can serve up to 4 people.
Ingredients
Instructions
- Melt the Butter and Cook the Onion: Melt 25g (1.4 oz) of the butter in a saucepan and add the onion. Stir to coat the onion in butter, then cook on low heat for about 20 minutes, stirring occasionally to prevent coloring.
- Add Flour and Mustard Powder: Stir in the sauce flour and mustard powder until smooth. Gradually add the milk, stirring constantly. Increase the heat to medium and gradually add the stock, stirring after each addition.
- Simmer the Sauce: Turn the heat down to low and let the sauce simmer gently for 5 minutes.
- Finish the Sauce: Stir in the grain mustard, the remaining butter, and seasoning. Pour into a warmed serving jug.
- Serve: This sauce is excellent with boiled gammon or a bacon joint.
Notes
- Cook the Onion Gently: Keep the heat low when cooking the onion to prevent it from browning. Stir occasionally to ensure it softens evenly and absorbs the butter.
- Add Flour and Mustard Powder Gradually: Mix in the flour and mustard powder until smooth before adding the milk. This helps avoid lumps in the sauce.
- Incorporate Milk Slowly: Add the milk a little at a time, stirring constantly to ensure a smooth and creamy consistency.
- Gradually Add Stock: Increase the heat to medium and pour in the stock slowly, stirring after each addition to fully blend the flavors and prevent clumping.
- Simmer Gently: Let the sauce simmer on low heat to thicken and develop flavor. Avoid boiling, as this can affect the texture and taste of the sauce.
Delia Smith Onion Sauce