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Improv Cooking Challenge: Bangers and Mash with Onion-Mustard Gravy

The great Irish recipe of bangers and mashed served with an onion-mustard gravy.
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Prep Time 10 mins
Cook Time 35 mins
Total Time 45 mins
Course Entree
Servings 3



for the mash:

  • 5 yukon gold potatoes peeled and diced
  • 1 cup 1% milk
  • ½ tablespoon prepared horseradish
  • kosher salt and black pepper

for the onion-mustard gravy:

  • 3 tablespoon butter
  • 1 large white onion sliced into ¼ inch slices
  • 1 ½ cloves garlic minced
  • 1 tablespoon fresh thyme
  • 2 oz beer preferably dark
  • 1 tablespoon whole grain mustard
  • 1 tablespoon cornstarch
  • 1 cup beef broth

for the sausage:

  • 1 tablespoon olive oil
  • 6 mild Italian sausages


  • 1. Preheat the oven to 350 degrees. Line a baking sheet with foil.
  • 2. Add potatoes to a large pot and fill with cold water. Season liberally with salt and bring to a boil over medium-high heat. Cook for 15-20 minutes or until the potatoes are fork tender.
  • 3. Meanwhile, add the butter and onions to a small saucepan over medium-low heat. Cook for 20 minutes, stirring occasionally, until the onions have caramelized.
  • 4. Add the olive oil to a skillet over medium-high heat and once hot, cook the sausages for 5-7 minutes or until brown on all sides. Transfer to the prepared baking sheet and finish cooking in the oven while you finish the rest of the meal.
  • 5. Add the garlic and thyme to the caramelized onions and cook for 1-2 minutes. Add the beer to the saucepan and stir with a wooden spoon, dislodging any of the stuck bits of onion.
  • 6. Stir in the mustard and once combined, sift the cornstarch over the mixture and whisk in the beef broth, stirring occasionally until the mixture reduces and thickens.
  • 7. Meanwhile, drain the potatoes and add the milk, horseradish, salt and pepper. Mash the potatoes until smooth.
  • 8. Plate the potatoes, followed by 2 of the sausages and a heaping spoonful of the onion-mustard gravy on top.


Recipes on Cookaholic Wife are for information purposes only. Nutritional Data provided has not been evaluated by a nutritionist.

Keyword bangers and mash, entree, garlic, gravy, irish, mashed potatoes, mustard, onions, sausage
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