Slow Cooker Sausages with Onion Gravy

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When you want a deeply comforting, tavern-style meal that fills your home with mouthwatering aromas with almost zero effort, Slow Cooker Sausages with Rich Onion Gravy is an absolute masterpiece. Thick slices of sweet yellow onions slow-cook in butter, broth, and savory pan drippings until they melt into a rich, velvety gravy that blankets plump, juicy sausages.

Here is a foolproof recipe that brings comforting pub-style flavors straight to your slow cooker.

Slow Cooker Sausages with Rich Onion Gravy

  • Prep time: 15 minutes
  • Cook time: 4 to 6 hours (Low) or 3 to 4 hours (High)
  • Servings: 4 to 6

Ingredients

  • 1.5 to 2 lbs high-quality sausages: Pork bangers, Italian sweet sausages, or bratwurst (pricked lightly with a fork to prevent splitting).
  • 3 large yellow onions: Peeled and sliced into thin, uniform half-moons.
  • 3 tbsp unsalted butter: Divided (for caramelizing onions and enriching the gravy).
  • 2 tbsp all-purpose flour: To thicken the rich onion gravy.
  • 1.5 cups low-sodium beef broth or chicken broth.
  • 1 tbsp Worcestershire sauce: Adds incredible savory depth and umami.
  • 1 tsp garlic powder (or 2 cloves minced garlic).
  • Fresh herbs: 2 sprigs of fresh thyme or 1 bay leaf.
  • Seasonings: Salt and freshly cracked black pepper to taste.

Instructions

1.Caramelize the Onions (Optional):Sauté onions slowly in butter until golden and sweet.

For the absolute best flavor, melt 2 tablespoons of butter in a skillet over medium heat and sauté the sliced onions with a pinch of salt for 10 to 15 minutes until soft, golden, and sweet. (Note: If you are short on time, you can place the raw sliced onions directly in the slow cooker).
2.Create the Gravy Base:Whisk flour into warm broth for a smooth base.

In a bowl, whisk the all-purpose flour into the beef broth until smooth. Stir in the Worcestershire sauce, garlic powder, salt, and pepper.
3.Assemble the Slow Cooker:Layer onions and thyme at the base.

Spread the cooked (or raw) sliced onions across the bottom of your slow cooker insert, placing the fresh thyme sprig or bay leaf right in the middle.
4.Brown and Add the Sausages:Brown sausages in a skillet first for extra flavor.

For superior texture, brown the sausages in a skillet over medium-high heat for 3 to 4 minutes per side until the casings are golden (they don’t need to be fully cooked through). Arrange the sausages directly on top of the onions.
5.Pour the Broth:Pour seasoned broth mixture over top.

Pour the seasoned broth and flour mixture evenly over the sausages and onions. Dot the top with the remaining tablespoon of butter.
6.Slow Cook to Perfection:Cover and slow cook on low or high.

Cover and cook on LOW for 4 to 6 hours or on HIGH for 3 to 4 hours, until the sausages are fully cooked and tender, and the onion gravy has thickened into a rich, glossy sauce.
7.Finalize and Serve:Discard herb stems and serve hot.

Discard the spent thyme sprigs or bay leaf. Taste the gravy, adjust seasoning if needed, and serve hot.

How to Serve It

  • Over Creamy Mashed Potatoes: Serve the juicy sausages and ladle rivers of rich onion gravy over a mountain of buttery garlic mashed potatoes.
  • With Crusty Bread: Pair with a warm, crusty baguette or Yorkshire pudding to soak up every last drop of the savory gravy.

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