Bangers and Mash with Onion Gravy

Bangers and Mash with Onion Gravy

Delicious Bangers and Mash with Onion Gravy, with sour cream mashed potatoes. An easy onion and mustard gravy and a great weeknight meal!

It’s hard not to be amused by the name Bangers and Mash, isn’t it? And when you say it in your head, do you say it with a bad British accent? Or is it just me? When we were eating it last night, I wondered out loud where the name bangers came from. My daughter suggested Miley Cyrus. Yeah … no ;)

So I did a little research. Apparently during the war, sausages were made with more water to make up for the lack of other ingredients, and they had a tendency to explode when heated over too high a heat. Hence the term “bangers”, and a visual that frankly, amuses me even more!

Beyond the fun name, the simple dish of sausage and mashed potatoes is perfect comfort food, especially when combined with a nice onion and mustard gravy. If you can find some great butcher-made pork sausage, it’s perfect for this dish, or use any sausage you enjoy.

Bangers and Mash with Onion Gravy

Cook’s Notes for Bangers and Mash with Onion Gravy

All three components of this dish can cook away at the same time, so it speeds up the process to about 30 minutes start to finish. Ideal for a quick weeknight meal.

I’ve included my method for cooking sausage in the instructions. It’s basically poaching them a bit until the water eventually evaporates and then they’re left to finish cooking and brown nicely in a dry-ish pan (the bit of oil sticks around after the water evaporates). Again, if you have another method for cooking sausage, just use that.

Bangers and Mash with Onion Gravy

Bangers and Mash: Sausages with Sour Cream Mashed Potatoes and an Onion Mustard Gravy

Bangers and Mash

Course: Main Course
Cuisine: British
Keyword: British dinner recipes, sausage and mashed potatoes
Prep Time: 5 minutes
Cook Time: 25 minutes
Total Time: 30 minutes
Servings: 4 servings
Energy: 772 kcal
Author: Jennifer
Simple, satisfying comfort food. Use whatever kind of sausage you like in this one. As all the components cook at the same time, this one gets to the table in about 30 minutes, so perfect for weeknight meals.


  • 4-6 pure pork sausages
  • 2 tsp olive oil
  • 1 cup water

Sour Cream Mashed Potatoes:

  • 2 pounds boiling potatoes peeled or washed and unpeeled
  • Salt for boiling water
  • 1 cup milk
  • 4 Tbsp unsalted butter
  • 1/3 cup sour cream
  • Salt and freshly ground pepper

Onion and Mustard Gravy:

  • 1 medium onion peeled and thinly sliced
  • 1 Tbsp vegetable oil
  • 1 Tbsp butter
  • 1 tsp sugar
  • 1 tsp balsamic vinegar
  • 1 1/2 cups beef stock or broth
  • 1 Tbsp cornstarch
  • 1 Tbsp cold water
  • 2 tsp whole grain mustard
  • Salt and black pepper


For the sausage:

  1. Heat oil and 1 cup of water in a skillet over medium-high heat. Add sausage and cook, turning regularly for about 15 minutes, or until browned and cooked through. (Water will eventually evaporate, leaving the bit of oil to brown the sausage).

For the Mashed Potatoes:

  1. Cut the potatoes into 1-inch cubes and place them in a large pot. Cover the potatoes with cold water with enough salt so the water tastes quite salty. Bring to a boil, then lower the heat and simmer, uncovered, for about 10 to 15 minutes, until the potatoes fall apart easily when pierced with a fork.
  2. Meanwhile, heat the milk and butter in a small saucepan, making sure it doesn't boil. Set aside until the potatoes are done.
  3. As soon as the potatoes are tender, drain. Mash the potatoes, then slowly whisk in enough of the hot milk/butter mixture to make the potatoes very creamy. Add the sour cream, a sprinkling of salt and some freshly ground pepper. Stir to combine. Taste for seasoning and add more, if necessary.

For the Onion Mustard Gravy:

  1. Melt the oil and butter in a large saucepan over medium-low heat. Add the onion and cover with a lid. Cook for about 10 mins or until the onions are soft and translucent. Add the sugar and balsamic vinegar to the onions and stir well. Cover with the lid again and cook another 5 minutes.Add the stock and boil gently uncovered for 5 minutes.
  2. In a small bowl mix the cornstarch with the cold water to a thin paste. Pour a little of the hot gravy into the starch mixture and mix thoroughly. Pour the starch mixture back into the gravy, add the mustard, raise the heat to medium-high and boil for 10 minutes, stirring occasionally or until the gravy is slightly thickened. Season with salt and pepper to taste. Keep warm until ready to serve.

Recipe Notes

Be sure to read the "Cook's Notes" in the original post, for more tips, options, substitutions and variations for this recipe!


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  • Aw man! I just tried an onion-gravy recipe over the weekend that was a bust. I think my bourbon on an empty stomach while I was cooking got ahead of me, and I mis-read the recipe and added like six onions instead of just one! I know, it seems so elementary ;) This sounds just wonderful, my husband is a huge meat-n-potatoes fan, and I am a sausage — excuse me, “bangers” :) — fan!

  • Oh, how we love Bangers and Mash at House Morell… had no idea where the name came from… thanks! Gorgeous presentation in the little square skillet by the way…

I love hearing from you, so if you have a question or something isn't quite clear, I'm happy to help. If you made this recipe, I'd love to know how you liked it ~ Jennifer

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