Brussel Sprout Sauce Recipe: Nutty Creamy Condiment With Roasted Depth

This sauce transforms roasted brussels sprouts into a creamy condiment with surprising depth. I developed it after realizing their natural sweetness could shine beyond side dishes.

The key is roasting until caramelized, then blending with a touch of cream and nutty ingredients. This creates a rich, velvety texture that pairs beautifully with meats and vegetables.

You’ll get a sophisticated sauce with layered flavors—earthy, slightly sweet, and perfectly balanced. It’s versatile enough for drizzling, dipping, or finishing dishes.

Store in an airtight container for up to a week. This one will become a staple in your kitchen.

Ingredients for Brussel Sprout Sauce

Nine ingredients blend into a velvety, nutty sauce that’s far more than the sum of its parts.

The brussels sprouts are the foundation here. Roast them until they’re nearly burnt—those caramelized edges pack all the sweetness. Trader Joe’s has great pre-trimmed sprouts if you’re short on time. For the cream, splurge on the heavy stuff (none of that half-and-half business). Pecans add that toasty depth, and Costco’s are the best deal for quality and price.

No pecans? Walnuts or almonds work just as well. Swap shallot for red onion at half the amount if that’s what you’ve got. Dijon too sharp? Whole-grain mustard brings texture without sacrificing flavor. The lemon juice brightens everything—bottled in a pinch, but fresh is always better here.

This keeps 5-7 days in the fridge, though the flavors deepen after 24 hours. Freezes beautifully for up to 3 months. Thin with a splash of water if it thickens too much after chilling.

Step-by-Step Instructions for Brussel Sprout Sauce

Here’s the method to transform roasted sprouts into a luscious, nutty sauce that elevates any dish.

Step 1: Roast the Brussels Sprouts Until Caramelized

Preheat your oven to 400°F. Toss the 2 cups Brussels Sprouts with 2 tablespoons Olive Oil, 0.5 teaspoon Salt, and 0.25 teaspoon Black Pepper on a rimmed baking sheet. Spread them in a single layer so they roast, not steam.

Roast for 20-25 minutes, flipping halfway through, until the outer leaves are deeply caramelized and crispy. This deep roasting develops the nutty, sweet base flavor that defines this sauce. Don’t pull them out too early—you want those dark, crispy edges for maximum depth.

Step 2: Toast the Pecans and Sauté Aromatics

While the Brussels sprouts roast, toast the 0.5 cup Pecans in a dry skillet over medium heat for 3-4 minutes until fragrant and lightly golden. Transfer to a plate to cool, then roughly chop.

In the same skillet, add the finely minced Shallot and 3 cloves Garlic Cloves (smashed first, then minced after peeling). Sauté over medium-low heat for 2-3 minutes until soft and translucent but not browned. Burnt garlic turns bitter, so keep the heat gentle and stir often.

Step 3: Blend the Roasted Sprouts and Aromatics

Combine the roasted Brussels sprouts, sautéed shallot and garlic, 1 tablespoon Dijon Mustard, and 1 tablespoon Lemon Juice in a blender or food processor. Pulse until the mixture is coarsely chopped but still has some texture—this isn’t a smooth purée.

Here’s the thing—this step builds the sauce’s body. The mustard adds tang, the lemon brightens, and the roasted sprouts provide that deep, nutty base. Scrape down the sides as needed to ensure even blending.

Step 4: Finish with Heavy Cream and Pecans

With the blender running, slowly drizzle in the 0.5 cup Heavy Cream until the sauce is smooth and creamy. Taste and adjust seasoning—you might want a pinch more salt or a squeeze of lemon, depending on your preference.

Transfer the sauce to a bowl and stir in the toasted pecans. I know it seems weird to add them at the end, but this preserves their crunch and prevents them from turning to paste during blending. Let the sauce sit for 10 minutes to allow the flavors to meld together beautifully.

Dietary Considerations for These Flavors

Gluten-Free Friendly

This creation is naturally gluten-free, making it perfect for anyone with sensitivities. All ingredients—from the Brussels sprouts to the heavy cream—are inherently free from gluten. Just ensure your Dijon mustard is certified gluten-free, as some brands add wheat-based stabilizers.

Dairy Modifications

For a dairy-free version, I’ve tested it with full-fat coconut cream from a can. It delivers the same richness without the dairy. The nutty pecans and caramelized sprouts mask any coconut flavor, creating a velvety texture that still impresses.

Vegan Adaptations

To make this fully plant-based, swap the heavy cream for cashew cream (blend soaked cashews with water). The pecans already add a buttery note, and the roasted sprouts provide depth. A splash of nutritional yeast can mimic the umami of dairy.

Nut Allergy Options

If nuts are an issue, replace the pecans with sunflower seeds or pumpkin seeds. Toast them in the same way for that essential crunch and nuttiness. The sauce’s flavor profile remains intact, just with a seed-based twist. 💪

Low-Carb and Keto

This sauce fits perfectly into low-carb diets. Brussels sprouts are naturally low in carbs, and the heavy cream adds healthy fats. One serving contains roughly 6g net carbs, making it a great addition to keto meal plans.

Soy-Free Assurance

None of the ingredients contain soy, but always check your Dijon mustard label. Some brands use soy as a thickener. I recommend Annie’s or Maille for soy-free options. This keeps the sauce worry-free for soy-sensitive diets.

Frequently Asked Questions