This sauce transforms roasted brussels sprouts into a rich, creamy condiment that elevates any dish. The nutty depth comes from caramelized sprouts blended with aromatic ingredients.
It takes just 20 minutes to create this versatile sauce. Use it as a pasta topping, sandwich spread, or dipping sauce for an unexpected yet delicious twist.
Ingredients for Brussel Sprout Sauce
Nine ingredients transform roasted sprouts into a luxurious, creamy sauce with nutty depth.
| Ingredient | Amount | Notes |
|---|---|---|
| Brussels Sprouts 🥬 | 2 cups | Roasted until deeply caramelized |
| Heavy Cream 🥛 | ¾ cup | Full-fat for creamy texture |
| Garlic Cloves 🧄 | 3 cloves | Peeled and minced |
| Extra-Virgin Olive Oil 🫒 | ¼ cup | Divided for roasting and blending |
| Lemon Juice 🍋 | 2 tbsp | Freshly squeezed for brightness |
| Dijon Mustard 🟡 | 1 tbsp | For sharp tangy depth |
| Salt 🧂 | ½ tsp | Diamond Crystal kosher preferred |
| Black Pepper 🌶️ | ¼ tsp | Freshly cracked for best flavor |
| Nutritional Yeast 🧀 | 2 tbsp | Adds umami and cheesy note |
| Parmesan Cheese 🧀 | ¼ cup | Freshly grated Parmigiano-Reggiano |
The Brussels sprouts must be roasted until deeply caramelized—this is non-negotiable for the signature nutty depth. Costco sells them pre-trimmed and halved, saving prep time. Use Parmigiano-Reggiano for authentic flavor; pre-grated versions lack complexity. Heavy cream should be full-fat—reduced-fat alternatives thin the sauce and compromise mouthfeel. Always opt for Diamond Crystal kosher salt when available for its clean, flaky texture.
No heavy cream? Full-fat coconut milk works as a dairy-free alternative, though it adds a subtle coconut note. Fresh lemon juice is key for brightness—bottled lacks acidity. If nutritional yeast isn’t on hand, 1 tbsp white miso paste deepens umami. Dijon mustard can be swapped for whole-grain mustard (same quantity) for a rustic texture. The garlic can be roasted alongside the sprouts for a milder, sweeter profile.
Sauce keeps in an airtight container in the fridge for 5 days. Freeze in ice cube trays for 3 months—thaw overnight before using. The flavor intensifies after 24 hours, so make it a day ahead if possible. Always bring to room temperature and whisk before serving, as it separates slightly when chilled.
Why You’ll Love This Recipe
- One Pot Magic: I just toss the Brussels sprouts in olive oil, roast them, then blend with cream and garlic—hardly any cleanup.
- Rich and Zesty: That creamy garlic base with a hit of lemon juice makes even the pickiest eaters ask for more.
- Weeknight Hero: Honestly, it pairs with pasta, chicken, or just crusty bread for an instant dinner upgrade.
- Budget Stretcher: A pound of Brussels sprouts and a few pantry staples feed four for under $10.
Step-by-Step Instructions for Brussel Sprout Sauce
This method transforms roasted Brussels sprouts into a rich, velvety sauce with layered depth.
Step 1: Roast the Brussels Sprouts to Deep Caramelization
Preheat your oven to 425°F. Toss the 2 cups Brussels Sprouts with 2 tablespoons of the Extra-Virgin Olive Oil, 0.5 tsp Salt, and 0.25 tsp Black Pepper until evenly coated. Spread them in a single layer on a rimmed baking sheet.
Roast for 20-25 minutes, stirring once halfway through, until the edges are deeply caramelized and crispy. The goal is to develop a nutty, almost charred depth—this is where the sauce’s complexity begins. Watch closely during the final minutes to prevent burning.
Step 2: Infuse the Cream with Garlic and Aromatics
In a small saucepan, heat the remaining 2 tablespoons Extra-Virgin Olive Oil over medium heat. Add the 3 cloves Garlic Cloves (minced) and sauté for 1-2 minutes until fragrant but not browned—burnt garlic will impart bitterness.
Pour in the 0.75 cup Heavy Cream and bring to a gentle simmer. Reduce the heat to low and let it steep for 5 minutes, allowing the garlic flavor to infuse the cream fully. This creates a fragrant base that balances the smoky roasted Brussels sprouts.
Step 3: Blend the Sauce to Silky Smoothness
Transfer the roasted Brussels sprouts to a blender or food processor. Add the garlic-infused cream, 1 tbsp Dijon Mustard, 2 tbsp Lemon Juice, 2 tbsp Nutritional Yeast, and 0.25 cup Parmesan Cheese. Pulse until combined, then blend on high for 1-2 minutes until completely smooth.
Taste and adjust seasoning—the Dijon Mustard should provide a sharp tang, while the Nutritional Yeast and Parmesan Cheese add umami depth. If the sauce is too thick, thin it with a splash of warm water or additional cream. The texture should coat the back of a spoon with a glossy finish.
Step 4: Finish and Serve with Precision
Return the sauce to a clean saucepan and warm over low heat for 2-3 minutes, stirring constantly. This step ensures all flavors meld together and the sauce reaches the perfect serving temperature. Avoid boiling, as it can cause the cream to separate.
Drizzle over pasta, grilled meats, or roasted vegetables. The sauce should have a rich, creamy consistency with a balanced interplay of smoky, nutty, tangy, and cheesy notes. For best results, serve immediately while the flavors are at their peak.
Pro Tips For Making Brussel Sprout Sauce
- Char the Sprouts First: Roast or sauté the Brussels sprouts until deeply browned before adding liquids—I learned this the hard way after too many pale, watery sauces. The caramelization adds depth that raw sprouts just can’t.
- Temper the Cream: Pull the heavy cream out of the fridge 10 minutes before using, or it’ll seize up when it hits the hot pan. Sounds fussy, but it prevents that ugly curdled look.
- Skip the Pre-Chop: Leave garlic cloves whole while browning, then mince after—this keeps them from burning to bitter little chips before the sprouts are done.
- Finish with Cold Butter: After the sauce comes together, swirl in a tablespoon of cold butter off the heat. My grandmother swore by this, and it smooths out the texture like nothing else.
Perfect Pairings for This Recipe
Pasta Pairings
Toss this sauce with fettuccine or pappardelle for a luxurious main course. The wide noodles capture the creamy texture beautifully. I recommend 1 cup sauce per 8 oz pasta for perfect coating. 💛
Grilled Proteins
Drizzle over grilled chicken breast or seared pork tenderloin to add depth. The nutty notes complement smoky meats perfectly. Brush on during the last 2 minutes of cooking for maximum flavor absorption.
Roasted Vegetables
Use as a finishing sauce for roasted cauliflower or asparagus. The creamy texture balances the vegetables’ natural bitterness. Drizzle 2 tbsp per serving just before serving.
Sandwich Spread
Transform your lunch by spreading this on turkey or chicken sandwiches. It adds moisture and complexity that mayo can’t match. I love it with ciabatta rolls and fresh arugula.
Dipping Sauce
Serve warm as a dip for crusty bread or vegetable crudités. Thin with 1-2 tbsp warm water if needed for dipping consistency. The nutty depth pairs especially well with endive or radishes. 🌟
Cheese Pairings
Top with extra shaved Parmigiano-Reggiano or crumbled goat cheese for added richness. The salty notes contrast beautifully with the sauce’s creamy sweetness.
Nutrition Facts
Frequently Asked Questions
Can I use frozen Brussels sprouts?
Yes, but thaw and pat completely dry first. Roast at 425°F for 25-30 minutes to achieve proper caramelization. Fresh sprouts yield better texture though.
What can I substitute for heavy cream?
Full-fat coconut milk works best for dairy-free. For lower fat, use half-and-half but expect a thinner sauce. Avoid milk—it lacks the richness needed.
How do I fix a sauce that’s too thick?
Thin with warm water or extra cream, 1 tablespoon at a time. Blend briefly after each addition for smooth consistency.
Can I make this sauce without a blender?
Use a food processor or immersion blender, but texture may be slightly grainier. For ultra-smooth results, strain through a fine-mesh sieve after blending.
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