Slow Cooker Creamed Leek and Gruyère Dip

Name: Slow Cooker Creamed Leek and Gruyère Dip
Prep time: 20 min
Cook time: 15 min
Total time: 35 min
Yield: 8 servings
Cuisine: French
Ingredients: 1½ lb (680 g) leeks, white and pale green parts only, cleaned and sliced into thin half-moons, white and pale green parts only, cleaned, halved lengthwise, then sliced into thin half-moons; 3 tablespoons (42 g) unsalted butter, cold, for cooking; ¾ teaspoon (5 g) kosher salt; to taste freshly ground black pepper; 1¼ cups (300 ml) heavy cream; 4 oz (113 g) cream cheese, softened to room temperature, softened to room temperature; 2 cups (200 g) Gruyère cheese, finely shredded, finely shredded; 4 sprigs fresh thyme sprigs; ⅛ teaspoon (½ g) ground nutmeg; ½ cup (120 ml) dry white wine (such as Sauvignon Blanc or Pinot Grigio); 1 clove (5 g) garlic clove, minced, minced

From the MyKitchenBank Kitchen

A silky, French-inspired dip featuring caramelized leeks and nutty Gruyère cheese, gently warmed in a slow cooker until luxurious and melting. Fragrant with fresh thyme and a whisper of nutmeg, it's the perfect party appetizer to serve with crusty bread or vegetables.

Prep: 20 min
Cook: 15 min
Wait: 1 hr 30 min
Total: 2 hr 5 min
Makes: About 2½ cups (600 ml)

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Ingredients

8 servings

1½ lb (680 g) leeks, white and pale green parts only, cleaned and sliced into thin half-moons, white and pale green parts only, cleaned, halved lengthwise, then sliced into thin half-moons
3 tablespoons (42 g) unsalted butter, cold, for cooking
¾ teaspoon (5 g) kosher salt
to taste freshly ground black pepper
1¼ cups (300 ml) heavy cream
4 oz (113 g) cream cheese, softened to room temperature, softened to room temperature
2 cups (200 g) Gruyère cheese, finely shredded, finely shredded
4 sprigs fresh thyme sprigs
⅛ teaspoon (0.5 g) ground nutmeg
½ cup (120 ml) dry white wine (such as Sauvignon Blanc or Pinot Grigio)
1 clove (5 g) garlic clove, minced, minced

Equipment (6)

Large skillet (12-inch / 30 cm)
Cutting board
Sharp knife
2-quart (1.9 L) slow cooker
Wooden spoon
Rubber spatula

Steps

Before you start

Trim and thoroughly rinse leeks, as sand and grit lodge between layers
Grate the Gruyère if not buying pre-shredded
Have a 2-quart (1.9 L) slow cooker ready
Read the timing—most of the work is passive slow cooking

1
Sauté the leeks
- Heat the butter in a large 12-inch skillet over medium heat.
- Once foaming, add the sliced leeks and minced garlic.
- Season with ¾ teaspoon kosher salt and a pinch of black pepper.
- Stir occasionally and cook for 12–15 minutes, stirring gently until the leeks are very soft, golden, and beginning to caramelize at the edges.
- This gentle cooking brings out their natural sweetness.
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Ready when: Leeks are very soft, pale golden, and beginning to caramelize at the edges
Tip: Stir gently to avoid breaking down the leeks too much; you want some texture remaining.
2
Deglaze the pan
- Pour the white wine into the skillet with the leeks, scraping the bottom with a wooden spoon to lift any browned bits.
- Let it simmer for 1–2 minutes so the wine reduces slightly and the alcohol cooks off, leaving behind a subtle flavor.
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Ready when: Wine is slightly reduced and smells mellow, not sharp
Tip: Scrape up all the caramelized bits from the pan for extra flavor.
3
Transfer to slow cooker
- Pour the leek mixture (including all liquid) into the 2-quart slow cooker.
- Add the heavy cream, softened cream cheese, shredded Gruyère, thyme sprigs, and ground nutmeg.
- Stir gently with a rubber spatula until the cream cheese is mostly incorporated and the ingredients are combined.
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Ready when: Cream cheese is mostly blended and no large lumps remain
Tip: Don't fully blend—a few pockets of cream cheese will melt into the dip as it cooks.
4
Cook on low
- Cover the slow cooker and set it to low.
- Cook for 1½ hours, stirring occasionally (every 20–30 minutes) to ensure even melting and prevent the cheese from pooling or burning at the edges.
- The dip will go from loose and separated to silky and cohesive.
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Ready when: Dip is smooth, creamy, and heated through; cheese is fully melted and blended
Tip: Stir gently and don't overheat, or the cream may separate slightly. Low heat keeps it silky.
5
Season and serve
- Fish out the thyme sprigs.
- Taste the dip and adjust seasoning with kosher salt and freshly ground black pepper.
- Transfer to a serving bowl or leave in the slow cooker on the warm setting, and serve with crusty bread, crudités, or crackers.
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Ready when: Seasoning is balanced and flavors are well-integrated
Tip: If the dip is too thick, stir in a tablespoon of cream at a time to reach your preferred consistency.

Good to know

Tips

Clean leeks thoroughly by slicing them in half lengthwise, then running cold water between the layers to rinse away hidden sand and grit.
For the creamiest texture, stir the dip every 20–30 minutes during the slow-cooking phase. This helps the cheeses melt evenly and prevents separation.
Keep the slow cooker on the warm setting during your party to maintain the perfect serving temperature without overcooking.
For a richer dip, replace 2 oz (57 g) of the cream cheese with an equal amount of grated Parmesan or aged Gruyère.

Make ahead

Prepare the leeks and garlic up to 2 days ahead and store in the fridge. You can also sauté the leeks and garlic the morning of your party, then refrigerate; reheat them gently in the skillet before transferring to the slow cooker.

Storage & reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently over low heat on the stovetop, stirring occasionally and adding a splash of cream if needed. The dip does not freeze well because the cream sauce can separate.

Substitutions

Gruyère cheese, finely shredded → Emmental or Jarlsberg cheese. Use an equal amount of another nutty, semi-hard Swiss cheese for a similar melting quality and flavor profile.
heavy cream → Crème fraîche. Substitute half the cream with crème fraîche for a tangier, slightly lighter dip with excellent body.
fresh thyme sprigs → 1 teaspoon dried thyme or ½ teaspoon dried tarragon. Use about one-third the amount of dried herb, as it is more concentrated. Stir it directly into the dip rather than as sprigs.
cream cheese, softened to room temperature → Mascarpone cheese. Use an equal amount of mascarpone for a richer, slightly less tangy dip with a more velvety texture.