Authentic Irish Bangers + Mash and Homemade Onion Gravy

Irish bangers and mash is a total comfort food. If you’ve never made these at home, you might just assume it’s sausages and potatoes, but that’s far from the truth. When done right, this classic Irish comfort food becomes a truly special meal. Wrapped up into this meal are golden, flavorful sausages, fluffy potatoes, and my favorite part, the onion gravy. The onion gravy gets slow-cooked until it’s sweet, savory, and perfectly silky. Paired all together, this dish delivers deep, satisfying comfort in every bite.

This dish doesn’t try to be fancy, which is why it is a recipe that I come back to again and again. It’s a hearty meal that doesn’t require you to spend hours in the kitchen. It makes for a simple weeknight dinner or a pleasing St. Patrick’s Day tradition. It turns easy and affordable ingredients into an irresistible meal.

What I love most about this recipe is how it transforms humble components into something that feels almost indulgent. A simple onion, with some time and patience, becomes rich and caramelized, releasing natural sweetness that pairs perfectly with the savory sausages. The creamy and light mashed potatoes act like a cushion to soak up every drop of the delicious gravy. Nothing in this meal is overcomplicated. Its simplicity in a way that it feels comforting before you even take your first bite.

So whether you’re connecting to your Irish roots or planning a cozy family dinner, the Irish bangers and mash with onion gravy is about to earn a permanent spot in your rotation. Grab your skillet and let’s make a dinner that fills your kitchen with the smells of a comforting home-cooked meal.

What Are Irish Bangers & Mash?

Irish Bangers and Mash are a traditional dish from Ireland, and you’d be hard pressed to find a corner pub in the country that doesn’t have them on the menu! It consists of pork sausages served over creamy mashed potatoes, and traditionally topped with a rich onion gravy. It’s a staple in Irish cuisine and is known for being a hearty and affordable pub meal.

Bangers are traditional Irish pork sausages that are seasoned with herbs like sage and thyme. They often include bread in the stuffing as well, which gives bangers a lighter color and softer texture than traditional sausages.

Mash refers, of course, to the creamy mashed potatoes which are whipped to perfection with butter and milk.

The onion gravy is a thick, brown sauce made from caramelizing onions and combining them with a rich beef broth. Other savory additions like red wine and Worcestershire sauce can be added, and in true Irish fashion, many will make this sauce with some Guinness stout, too.

I’ve tweaked this recipe until I have it exactly like I want it, nice and thick with a rich, deep flavor! But I also offer up some variations later on in this article for those who like a slightly thinner sauce or want to change up the flavor a bit.

For any history buffs, this company, Josef’s Artisan Meats, which sells traditional bangers, also goes into a deeper dive into the history of bangers and mash, dating back to the Romans in the 4th century A.D.

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Printable Irish Bangers and Mash with Onion Gravy Recipe Card

Juicy Irish sausages served over fluffy mashed potatoes and then smothered in a rich onion gravy. Irish bangers and mash with savory onion gravy is a perfect, simple weeknight comfort food.

Prep Time20 minutes mins

Cook Time1 hour hr

Total Time1 hour hr 20 minutes mins

Course: Dinner, Dinner/Lunch, Main Course

Cuisine: Irish

Keyword: mashed potatoes, Onion gravy

Servings: 5

Author: Mackenzie

Ingredients

• 5 sausages, cooked according to package directions

Mashed Potatoes

• 2 lb yellow potatoes, peeled and quartered
• 4 tbsp butter, unsalted
• ½ cup milk or heavy cream
• salt and pepper, to taste

Onion Gravy

• 4 tbsp butter, unsalted
• 1 large onion, sliced
• 2 tbsp brown sugar
• 4 tbsp all-purpose flour
• ¼ cup red wine
• 1 tsp dried thyme (or 1 tbsp fresh)
• 2 cups beef broth
• 1 tbsp Worcestershire sauce
• 1 tbsp Dijon mustard
• ¼ tsp black pepper
• 1 tsp salt
• 1 tbsp balsamic vinegar

Instructions

Mashed Potatoes:

• Place the peeled and quartered potatoes in a large pot covered with cold, salted water.
• Bring to a boil and cook for about 15 minutes or until the potatoes are fork-tender. Drain well.
• Return the potatoes to the pot, add the butter and milk or heavy cream, and mash them until soft and fluffy.
• Add salt and pepper to taste. Set aside and cover to keep warm.

Onion Gravy:

• In a cast-iron skillet, melt the butter over medium-low heat. Add the sliced onions and brown sugar and cook for about 30 minutes, stirring every few minutes.
• Add the flour and stir to coat the onions, cook for a few minutes, stirring constantly.
• Add the red wine and herbs and bring to a boil. Scrape along the bottom of the pan to remove any stuck, browned bits. Reduce the heat to a simmer and cook for about 5 minutes.
• Add the beef broth, Worcestershire sauce, dijon mustard, salt, pepper, and balsamic vinegar, and bring to a boil. Reduce the heat to a low simmer and cover. Cook for about 10-15 minutes or until thickened, stirring occasionally.
• To serve, place hot mashed potatoes on a plate, top with cooked sausages and pour onion gravy over the top.

Notes

• Choose high-quality pork sausages: Bratwurst or British-style sausages like Cumberland or Lincolnshire are perfect for this recipe. Always opt for uncooked sausages.

Nutrition

Carbohydrates: 93g | Protein: 23g | Fat: 33g | Saturated Fat: 14g | Cholesterol: 85mg | Sodium: 1442mg | Potassium: 1362mg | Fiber: 7g | Sugar: 11g | Vitamin A: 390IU | Vitamin C: 78mg | Calcium: 60mg | Iron: 3mg

Best Onion Gravy Ever (Step-by-Step)

The real star of the show here is the onion gravy. Caramelizing onions properly takes a little patience, but it’s the kind of cooking that fills your kitchen with the most irresistible aroma. As the onions soften and turn golden, they release their natural sweetness. Combined with savory broth and just the right seasoning, the result is a velvety gravy that ties the whole dish together. Follow along with these step-by-step instructions to make a gravy you’re going to want to eat by the spoonful.

Step 1

In a cast-iron skillet or heavy-bottomed stainless steel skillet, melt 4 tbsp of butter over medium-low heat. Add the sliced onion and 2 tbsp of brown sugar and cook for about 30 minutes, stirring every few minutes.

Step 2

Add the 4 tbsp all-purpose flour and stir to coat the onions. Cook for 2-3 minutes, stirring constantly.

Step 3

Add 1/4 cup of red wine and the thyme to deglaze the pan and bring to a boil. Scrape along the bottom of the pan to remove any stuck, browned bits, which add great flavor to the sauce! Reduce the heat to a simmer and cook for about 5 minutes, until most of the red wine has cooked off.

Step 4

Add the remaining ingredients to the pan: 2 cups of beef broth, 1 tbsp Worcestershire sauce, 1 tbsp Dijon mustard, 1/4 tsp black pepper, 1 tsp salt, and 1 tbsp balsamic vinegar, and bring to a boil. Reduce the heat to a low simmer and cover. Cook for about 10-15 minutes or until slightly thickened, stirring occasionally.

Step 5

To serve the bangers and mash, place hot mashed potatoes on a plate. Top them with cooked sausages and pour onion gravy over the top. Enjoy!

Recipe Variations

Irish bangers and mash is a classic recipe, but at the same time, very adaptable. It’s a comforting dish that is easy to make your own. Whether you want to elevate it for guests, lighten it up, or tweak it based on what’s in your fridge, there are so many ways to customize this classic.

Make a Stout Gravy

For a deeper flavor that leans more into the malted richness of a dark beer and most definitely takes this to another level of Irish, use a Guinness Stout in the sauce. Skip the red wine, and replace half of the beef broth with Guinness. You’ll use 1 cup of beef broth and 1 cup of Guinness Stout to make an even darker and thicker gravy that is every bit as luxurious and works wonders to balance the sweetness of the caramelized onions.

Garlic & Herb Mashed Potatoes

While you simply can’t go wrong with classic mashed potatoes, it’s easy enough to enhance them and really elevate the flavors in this meal. Try roasting a head of garlic and mashing it in with the potatoes, along with some fresh herbs like parsley or chives. You can even stir in some sour cream or cream cheese for extra creaminess. These small additions take the flavor and texture of these mashed potatoes to the next level!

Make it Real Traditional!

Colcannon basically refers to mashed potatoes with cabbage, and it is a staple of Irish cuisine that is rooted in its culture and perfect to enjoy on St. Patrick’s Day! To give this very traditional spin to your bangers and mash, sauté sliced cabbage in a bit of butter and fold it into your mashed potatoes. It will add some subtle color and texture with a nice, earthy flavor to the meal.

Pairings & Serving Suggestions

Irish bangers and mash are hearty enough to stand on their own, but the right sides and pairings can turn this from a simple dinner into a perfect meal.

Add a serving of veggies to the plate, like buttered peas, steamed green beans, or some roasted carrots. Not only will these add a pop of color, but they also help to balance out the richness of this dish.

Serve a warm loaf of bread at the table or even some Irish soda bread so that you can soak up every last bit of that savory onion gravy.

Pair this meal with some drinks like an Irish stout, ale, or a dry cider. These are all great choices to balance out the flavors of the dish and, with the cider, to cut through the dish’s richness with its acidity.

Irish Bangers + Mash FAQs

Here are answers to some common questions to help you make this dish perfectly every time.

Can I Caramelize Onions Faster?

You can caramelize onions in a faster method, but if time allows, the long, slow cooking of true caramelized onions is what gives them the deep, jammy flavor and consistency. You can caramelize onions in as little as 10-15 minutes, and by adding liquid to the pan, like water or broth, to prevent the onions from burning.

Slice the onions thinly, melt some butter or oil in a pan over high heat, and add the onions. Add a splash of water or broth and cover the pan, allowing the onions to release more liquid. After a few minutes, remove the lid and cook, stirring frequently to prevent burning, and add a splash of liquid whenever the pan dries out. Cook until the onions are soft and translucent.

Also, check out this Food Network video, which uses a few different ingredients from my recipe, but shows the basic techniques and what to look for with your caramelized onions.

Can I Make Onion Gravy Ahead of Time?

You can make the gravy ahead of time, and that’s a great idea, since letting the gravy sit for even just a few hours allows the flavors to deepen even more. This gravy stores very well in the fridge. Keep it in an airtight container for up to 3-4 days. Reheat it gently on the stovetop over medium-low heat. Add a splash of water or broth to help loosen up the gravy if it has thickened too much.

Can I Make This Gluten-Free?

With a few slight recipe changes, this dish can suit any gluten-free diners! Just swap the flour used in the onion gravy for a gluten-free flour or cornstarch. If you are using store-bought broth, double-check the label to be sure that it is gluten-free.

Finally, do the same with your sausages, as some sausages including the ones traditionally used for bangers and mash are made with breadcrumbs. As long as your sausages are gluten-free too, this meal is easily changed over to be a gluten-free favorite!

Celebrating the Irish Way

There’s a reason Irish bangers and mash has remained a beloved comfort food for generations; it delivers everything you want from a home-cooked meal. It’s hearty and rich in a satisfying and nostalgic kind of way. It’s made simply with a handful of pantry staples, and after a bit of patience with those onions, you’ve got something that feels like it came straight from a cozy Irish pub kitchen.

This is a meal that’s sure to bring everyone to the table quickly, and if you happen to have leftovers, it tastes even better the next day!

If you try this Irish bangers and mash with onion gravy, I’d love to hear how it turns out! Did you add stout to the gravy? Try a traditional Colcannon twist? Be sure to comment and share your version of this dish to see if your comment inspires someone else’s next cozy dinner.

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