Brown Butter and Sage Sauce for Butternut Squash Ravioli

Butternut Squash Ravioli Sauce Ingredients

This sauce uses a very short ingredient list and relies on technique for its flavor: browned butter, fresh sage, and a touch of lemon. It pairs beautifully with butternut squash and mascarpone ravioli as well as a standard 16‑oz package of store-bought filled pasta.

• 1/2 cup salted butter: The milk solids in butter brown and create the sauce’s nutty flavor; salted butter provides seasoning so you often won’t need extra salt.
• 1/3 cup fresh sage leaves, packed: Fresh leaves crisp up in the hot butter and add a savory counterpoint to the sweet squash filling.
• 2 tsp lemon juice: Stirred in off the heat to stop the browning and add brightness so the butter doesn’t feel heavy.
• Salt and pepper to taste: Usually just freshly ground black pepper; taste before adding salt.
• Bacon, optional: Crumbled cooked bacon adds savory saltiness and texture that pairs well with sweeter fillings like squash or pumpkin.

Variations and Substitutions

• Toasted hazelnuts: Stir in 1/4 cup chopped toasted hazelnuts at the end for crunch—this is a classic finish for squash ravioli.
• Unsalted butter: If using unsalted, add about 1/4 tsp kosher salt when the sage goes in, then adjust to taste at the end.
• Pasta water: Two tablespoons of the starchy cooking water will loosen the sauce and help it cling to the ravioli.
• Parmigiano-Reggiano: Grate over the plated dish rather than into the pan to avoid clumping in the hot butter.

Grab These Tools

• A light-colored pan: Stainless or pale enamel lets you see when the butter changes color; a dark pan hides that cue.
• Slotted spoon or tongs: Useful for lifting the crisp sage leaves out before they become bitter.
• Wide, shallow bowl: Toss ravioli gently; a deep pot can break delicate filled pasta.

How to Make Butternut Squash Ravioli Sauce: An Easy Guide

Start the brown butter and sage sauce as the ravioli go into the pot so everything finishes together. The method is straightforward and gives consistent results when you pay attention to the color and aroma of the butter.

1. Melt the butter: Place butter in a light-colored saucepan over medium heat and watch carefully.
2. Add the sage when it foams: When the butter foams and most of the water has evaporated, add the sage leaves. Continue cooking until the foam settles, the butter becomes amber, and it gives off a nutty aroma—about 3 to 5 minutes.
3. Finish off the heat: Remove the pan from the burner. Stir in the lemon juice, add freshly ground black pepper, and then taste for salt; salted butter often provides enough seasoning.

Use tongs or a slotted spoon to lift the crisped sage onto paper towel while you toss the cooked ravioli in the brown butter. Scatter the crisp leaves back on top just before serving. If using bacon or toasted nuts, add them at the end so they keep their texture.

5 Common Mistakes to Avoid with Pasta Sauce for Butternut Squash Ravioli

• Walking away from the pan: Butter can go from perfectly browned to burnt in under a minute. Stay close and watch the color and smell.
• Using a dark skillet: You need to see the butter darken; a black pan hides that visual cue.
• Putting wet sage into the pan: Water causes the hot butter to spit. Pat leaves dry before frying.
• Adding lemon juice on the heat: Acid added while still over heat will mellow; add lemon off the burner to preserve brightness.
• Keeping sage in the butter too long: Remove the leaves once crisp. If they stay in, they’ll turn bitter and affect the sauce.

Make Ahead and Storage

You can prepare the sauce ahead of time. Make it as directed, cool it to room temperature, and store it in an airtight container in the refrigerator. Properly sealed, it will keep for three to four days. Butter absorbs odors, so seal the container well.

To reheat, warm the sauce gently over low heat, stirring occasionally. Do not boil. The sage will soften during storage, so if you want crisp leaves, fry a few fresh ones when reheating and add them just before serving.

What to Serve with Butternut Squash Ravioli Sauce

One batch of this sauce is sized to dress about 16 ounces of filled ravioli. Filled pasta is denser than dry pasta, so the same number of portions weighs more when using ravioli or gnocchi.

• Butternut squash ravioli: Fresh, frozen, homemade, or store-bought—all work. Cook gently in well-salted water so the pasta doesn’t split.
• A bright green salad: A salad with lemon or vinegar provides a refreshing contrast to the buttery sauce.

For a more substantial meal, add roasted vegetables, a simple green side, or crusty bread to soak up any remaining sauce. A light, acidic accompaniment balances the richness of the butter and complements the sweet filling.

Tips for the Best Brown Butter Sauce for Ravioli

• Listen to the pan: The sizzling quiets as water cooks off; when it calms, browning is imminent.
• Watch for brown flecks: Tiny toasted specks on the bottom are the milk solids—this is the flavor you want.
• Pull it early: The pan retains heat and will continue to brown after you remove it from the burner.
• Serve warm: Warm bowls keep the butter from solidifying too quickly; heat and dry the serving bowl before tossing the pasta.