Slow Cooker Sausage, Fennel and Cream Sauce

Name: Slow Cooker Sausage, Fennel and Cream Sauce
Prep time: 15 min
Total time: 15 min
Yield: 4 servings
Cuisine: Italian
Ingredients: 1½ lb (680 g) fennel sausage (Italian sweet or hot, casings removed), casings removed, broken into bite-sized pieces; 1 bulb (300 g) fennel bulb (about 1 medium), trimmed, halved lengthwise, cut crosswise into ½-inch slices; 4 cloves (20 g) garlic cloves, minced; 1 cup (240 ml) dry white wine (Pinot Grigio or Sauvignon Blanc); 1 cup (240 ml) low-sodium chicken broth; ½ cup (120 ml) crushed tomatoes (canned); ¾ cup (180 ml) heavy cream, cold; 1 tbsp (15 ml) extra-virgin olive oil; to taste kosher salt; to taste freshly ground black pepper; ¼ tsp (½ g) red pepper flakes (optional); ½ cup (50 g) Parmigiano-Reggiano cheese, finely grated, finely grated (optional)

From the MyKitchenBank Kitchen

A silky Italian-inspired sauce built on fennel sausage, braised fennel, white wine, and finished with cream. The slow cooker transforms the sausage into tender morsels while the fennel mellows and sweetens, creating a rich, aromatic sauce that clings beautifully to pasta. Ready in under 4 hours with minimal hands-on work.

Prep: 15 min
Cook: —
Wait: 3 hr 30 min
Total: 3 hr 45 min
Makes: About 3 cups sauce (enough for 1 lb pasta)

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Steps

Before you start

Have a 4-quart slow cooker ready
Remove sausage casings before browning
Slice fennel bulb lengthwise first for even cooking
Read the full recipe; the sausage browns on the stovetop before slow cooking

1
Brown the sausage
- Heat the olive oil in a 12-inch skillet over medium-high heat.
- Add the sausage pieces (broken into ½- to ¾-inch bits) and cook, stirring and breaking them up with a wooden spoon, for 5–7 minutes until golden brown and cooked through.
- The sausage should reach an internal temperature of 160°F (71°C) and have lost its raw appearance with light caramelization on the surface.
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Ready when: Sausage reaches 160°F (71°C) internal temperature; no pink remains inside
Tip: Don't overcrowd the skillet; cook in one layer so it browns rather than steams.
2
Build the sauce base
- Transfer the browned sausage to a 4-quart slow cooker.
- Add the sliced fennel, minced garlic, white wine, chicken broth, and crushed tomatoes.
- Stir to combine.
- Add a pinch of salt, freshly ground black pepper, and red pepper flakes if using.
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Ready when: All ingredients are combined and submerged
Tip: Don't season too aggressively now; you can adjust after the sauce reduces.
3
Slow cook the sauce
- Cover the slow cooker and cook on low for 3 hours.
- The fennel should be very tender, the sausage tender, and the liquid should have reduced and deepened in flavor.
- Stir once halfway through cooking.
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Ready when: Fennel is soft and beginning to break down; sauce is fragrant and slightly thickened
Tip: Low heat prevents the cream from breaking later. Resist the temptation to raise the heat.
4
Finish with cream
- Pour the cold heavy cream into the slow cooker and stir well to combine.
- Cook on low for another 15–20 minutes, uncovered, until the cream is heated through and the sauce looks silky and cohesive.
- Taste and adjust salt and pepper.
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Ready when: Cream is hot and fully blended; sauce is glossy and uniform in color
Tip: Adding cold cream to a gentle slow cooker temp prevents it from curdling or separating.
5
Serve over pasta
- Toss the sauce with about 1 lb cooked pasta (pappardelle, tagliatelle, or penne all work well).
- Top with grated Parmigiano-Reggiano if desired.
- Serve immediately.
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Ready when: Pasta is coated evenly with sauce
Tip: Reserve 1 cup of pasta water before draining; stir a splash into the sauce if it seems too thick.

Good to know

Tips

For the best texture, slice fennel crosswise rather than lengthwise; this creates tender pieces that integrate into the sauce rather than stringy strands.
If your slow cooker tends to cook hot, use the low setting and check at 2.5 hours; fennel breaks down quickly once tender, and overshooting texture can turn it mushy.
This sauce pairs beautifully with wide ribbon pastas (pappardelle, tagliatelle) that trap the sauce in their folds; avoid very thin or short shapes that won't showcase it.
For a touch of brightness, finish with a squeeze of fresh lemon juice and a handful of fresh flat-leaf parsley just before serving.

Make ahead

The sauce can be made up to 2 days ahead. Cool completely and refrigerate in an airtight container. Reheat gently on low in the slow cooker (about 30 minutes) or on the stovetop over medium-low heat, stirring occasionally and adding a splash of broth or pasta water if it has thickened too much.

Storage & reheating

Refrigerate in an airtight container for up to 3 days. Freeze for up to 3 months (thaw in the fridge overnight before reheating). Reheat on the stovetop over medium-low heat or in the slow cooker on low for 20–30 minutes, stirring occasionally. The sauce may look slightly broken when cold; it will come together as it warms.

Substitutions

fennel sausage (Italian sweet or hot, casings removed) → Italian pork sausage (without fennel seeds) or 1 lb ground pork mixed with ½ tsp fennel seeds. If fennel sausage is unavailable, you can replicate the flavor by browning regular Italian sausage and stirring fennel seeds into the sauce during the initial assembly.
dry white wine (Pinot Grigio or Sauvignon Blanc) → ½ cup dry white wine + ½ cup low-sodium chicken broth, or ½ cup apple cider vinegar mixed with ½ cup broth for a non-alcoholic version. Wine adds acidity and depth; substitutes must be adjusted in the liquid ratios to maintain sauce consistency.
heavy cream → ½ cup heavy cream + ¼ cup whole milk, or ¾ cup half-and-half. Using half-and-half will produce a slightly lighter sauce but the texture will still be creamy.
crushed tomatoes (canned) → ¾ cup diced fresh tomatoes (seeded to reduce liquid). Fresh tomatoes will yield a brighter flavor but may make the sauce slightly thinner; add 2 tbsp tomato paste to compensate.