Sausages in Onion Sauce with Mustard Mash – Hearty, Savory, and Perfect for Comfort Meals

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Tender sausages smothered in rich onion gravy, served over creamy mustard-infused mashed potatoes — this Sausages in Onion Sauce with Mustard Mash is pure cozy comfort. It’s the kind of meal that instantly warms you up from the inside out, no matter how cold it is outside.

The deep caramelized onion sauce paired with juicy sausages and buttery mash creates a warm, satisfying plate that feels like a big hug on a chilly evening. If you love hearty, rustic dishes, you might also enjoy our Guinness Beef Stew — another comforting favorite that’s perfect for cozy nights in.

Perfect for casual family dinners, pub-style gatherings, or any night you crave something hearty and homemade. And for a lighter side to balance the richness, our Pickled Mushrooms make a wonderfully tangy companion.

✅ Recipe Summary

🕒 Prep Time: 20 minutes
🔥 Cook Time: 40 minutes
🍽️ Total Time: 1 hour
👥 Servings: 4 servings
⚡ Difficulty: Easy

🧾 Ingredients

For the Sausages and Onion Sauce:

• 8 pork sausages
• 2 tablespoons olive oil (30ml)
• 2 large onions, thinly sliced
• 2 tablespoons all-purpose flour (15g)
• 1 cup beef or chicken stock (240ml)
• 1 tablespoon Worcestershire sauce
• 1 teaspoon Dijon mustard
• Salt and black pepper, to taste

For the Mustard Mash:

• 2 pounds potatoes, peeled and cubed (900g)
• 4 tablespoons unsalted butter (60g)
• ½ cup milk (120ml)
• 2 tablespoons whole-grain mustard (30g)
• Salt and black pepper, to taste

👩‍🍳 Instructions

1. Make the Mash:
   Boil the potatoes in salted water until tender, about 15–20 minutes.
   Drain well, mash, and beat in butter, milk, mustard, salt, and pepper.
   Keep warm.
2. Cook the Sausages:
   In a large skillet, heat olive oil over medium heat.
   Brown the sausages on all sides, about 10 minutes.
   Remove and set aside.
3. Make the Onion Sauce:
   In the same skillet, add the sliced onions.
   Cook slowly over medium heat until deeply golden and caramelized, about 15 minutes.
4. Stir in the flour and cook for 1 minute.
   Gradually add the stock while stirring, then add Worcestershire sauce and mustard.
   Simmer for 5 minutes until thickened.
5. Return sausages to the pan, cover, and simmer for 10 more minutes until fully cooked through.
6. Serve sausages and onion sauce over generous scoops of mustard mash.

📌 Notes

✅ Cook the onions low and slow for the richest flavor.
✅ Use good-quality sausages for the best results.
✅ Warm the milk before adding it to the mashed potatoes for extra creaminess.

🔄 Variations & Add-ons

✅ Add a splash of red wine to the onion sauce for depth.
✅ Stir in peas or spinach to the mash for extra veggies.
✅ Swap pork sausages for chicken or vegetarian sausages if preferred.

🥄 Nutrition Information (Per Serving)

• Calories: 680 kcal
• Carbohydrates: 35g
• Protein: 24g
• Fat: 48g
• Saturated Fat: 18g
• Cholesterol: 110mg
• Sodium: 950mg
• Fiber: 4g
• Sugar: 5g

🌍 Background Story

Sausages in Onion Sauce with Mustard Mash is a beloved classic of British comfort cooking, famously served in cozy pubs and family kitchens alike.

Rooted in simple, hearty ingredients, it turns humble sausages and onions into a rich, flavorful dish that feels timeless and nourishing.

The addition of mustard to creamy mashed potatoes adds just the right tangy kick, balancing the richness of the gravy perfectly.

This dish captures the spirit of traditional home-cooked meals — nothing fancy, just good food made with love and care, perfect for gathering around the table.

🍽️ Serving Suggestions

Serve with steamed green beans, buttered peas, or a crisp side salad.

A pint of ale, a light cider, or a simple sparkling water with lemon pairs beautifully.

❓ FAQs About Sausages in Onion Sauce with Mustard Mash

Can I use vegetarian sausages?
Absolutely — just adjust cooking time as needed.

Can I make the mash ahead of time?
Yes — reheat gently with a splash of extra milk to keep it creamy.

What type of mustard is best?
Whole-grain mustard gives texture and flavor, but Dijon or English mustard works too.

Can I freeze the sausage and onion sauce?
Yes — cool fully, freeze in portions, and reheat gently before serving.

Can I use red onions instead of white?
Definitely — they add a slightly sweeter, deeper flavor.

✨ Final Thoughts

Rich, hearty, and utterly comforting, this Sausages in Onion Sauce with Mustard Mash is a timeless recipe that warms hearts as much as it fills bellies.

Simple, rustic, and always satisfying.