Oh, that cozy feeling when the leaves start to change and all you want is something warm, comforting, and utterly delicious? That’s exactly what this Sage Butternut Squash Gratin brings to the table! Trust me, I’ve made this for everything from a simple Tuesday dinner to a big holiday feast, and it’s always a showstopper. The star is the creamy, dreamy sauce infused with the earthy, savory goodness of fresh sage, all clinging to perfectly tender slices of butternut squash. It’s just one of those dishes that makes everyone’s eyes light up, you know? It’s rustic elegance in a baking dish!
Why You’ll Love This Sage Butternut Squash Gratin
Seriously, what’s not to love? Get ready to dive into a dish that’s:
- Super Easy to Make: You’ll be amazed at how simple it is, even for a weeknight!
- Flavor Packed: The combo of sweet squash, savory sage, and cheesy goodness is just heavenly.
- Holiday Ready: Perfect for Thanksgiving, Christmas, or any special gathering.
- Pure Comfort: It’s like a warm hug in a bowl, totally satisfying and cozy.
Ingredients for Sage Butternut Squash Gratin
Alright, let’s talk ingredients! This recipe is pretty straightforward, and getting the right stuff makes all the diff. You’ll need:
- 1 large butternut squash (make sure it’s a good size!), peeled, seeded, and sliced super thin – I like to use a mandoline for this, makes it a breeze!
- 1 cup heavy cream – for that luxurious richness, of course!
- 1/2 cup milk – just to lighten it up a tad.
- 2 cloves garlic, minced – fresh is best here, no doubt!
- 2 tablespoons fresh sage, chopped – don’t skimp on the sage, it’s the star along with the squash!
- 1/2 teaspoon salt – to bring out all those yummy flavors.
- 1/4 teaspoon black pepper – freshly ground if you have it!
- 1/2 cup Gruyere cheese, grated – oh, Gruyere is just perfect with squash.
- 1/4 cup Parmesan cheese, grated – for that salty, nutty finish.
Essential Equipment for Your Sage Butternut Squash Gratin
Okay, so you’ve got your ingredients ready – awesome! Now, let’s talk about what you’ll need to actually make this magic happen. It’s not a ton of fancy stuff, which is why I love it so much!
- Baking Dish: You’ll want something around a 9×13 inch size, or similar, to hold all those lovely layers of squash and creamy sauce. It just needs to be oven-safe, of course!
- Mandoline Slicer (or a Sharp Knife): Honestly, getting your butternut squash sliced thinly and uniformly is key for even cooking. A mandoline is your best friend here, but a super sharp knife and a steady hand will work too! Just be careful.
- Saucepan: A medium-sized saucepan is perfect for gently warming up that glorious sage-infused cream sauce. You don’t want it boiling, just nice and warm – and a regular saucepan works like a charm for this.
Step-by-Step Guide to Making Sage Butternut Squash Gratin
Okay, now for the fun part – putting it all together! It’s really quite simple, and watching it transform in the oven is half the fun. Trust me, the smell alone is worth it! This is one of those comforting dishes that’s perfect alongside something like my garlic herb roasted potatoes.
Preparing the Oven and Dish
First things first, let’s get that oven warmed up! You’ll want to preheat it to 375°F (190°C). While that’s heating, just give your baking dish a light greasing. Butter or a little cooking spray works perfectly to make sure nothing sticks.
Creating the Creamy Sage Sauce
In a medium saucepan, whisk together the heavy cream, milk, minced garlic, chopped fresh sage, salt, and pepper. Pop it on the stove over medium heat. You just want to warm it all up gently – no need to let it bubble or boil! Once it’s nice and warm, take it right off the heat. This is where all that amazing sage flavor starts to really bloom into the sauce.
Assembling the Gratin Layers
Now for the layering! Take your thinly sliced butternut squash and arrange it in an even layer (or a few layers if your dish is deep) in that greased baking dish. Then, just pour that warm, fragrant cream mixture all over the squash. Make sure it gets in all the nooks and crannies! Finally, sprinkle both the Gruyere and Parmesan cheeses evenly over the top. It’s going to look beautiful and smell even better!
Baking and Finishing the Sage Butternut Squash Gratin
Time for the oven! Cover your baking dish tightly with foil. This helps the squash steam and get nice and tender without drying out. Pop it in for about 30 minutes. Then, carefully remove the foil. Pop it back in for another 15 to 20 minutes, or until the squash is fork-tender and that cheesy topping is bubbly and has a lovely golden brown crust. Oh, and give it just a few minutes to rest after it comes out – it’ll be super hot and the flavors will meld even more.
Tips for Perfect Sage Butternut Squash Gratin
Alright, so you’ve got the recipe, but let me give you a few little pointers from my kitchen to yours so your Sage Butternut Squash Gratin turns out absolutely perfect every single time. You know, those little tricks that make a dish truly shine! First off, when you’re picking out your butternut squash, look for one that feels heavy for its size and has a nice, even tan color – no green spots or soft patches!
For those slices, I really can’t stress enough how important it is to get them uniform. If they’re too thick in some spots and thin in others, you’ll end up with weird textures. A mandoline is a lifesaver for this, but if you’re using a knife, just take your time and slice them as evenly as you can, maybe about 1/8-inch thick. Also, don’t rush that sauce warming moment; gently heating the cream and milk really helps the sage and garlic flavors infuse beautifully without scorching. It’s the little things, right? And if you’re curious about other veggie dishes, you might love trying my secretly healthy zucchini brownies – sneakily delicious!
Ingredient Substitutions and Notes
Sometimes you look in the fridge and don’t have exactly what the recipe calls for, right? No sweat! For this Sage Butternut Squash Gratin, you can totally swap things around. If Gruyere isn’t your jam, a good sharp cheddar or even a nutty Swiss cheese will be delicious. And hey, if you don’t have fresh sage on hand, about a teaspoon of dried sage will do in a pinch, just stir it into the warm cream mixture. Just make sure those butternut squash slices are nice and even – that’s probably the most important part for perfect cooking!
Serving Suggestions for Your Gratin
This Sage Butternut Squash Gratin is so versatile, it practically goes with everything! For a fantastic weeknight, I love pairing it with my slow cooker chicken and rice – it’s easy and super satisfying. If you’re going for something a bit heartier, maybe for a Sunday dinner or a holiday, it’s absolutely amazing alongside some juicy garlic butter meatballs or a perfectly roasted chicken. It just adds that touch of something special without being complicated!
Storage and Reheating Instructions
Got leftovers? Lucky you! First off, make sure your Sage Butternut Squash Gratin has cooled down a bit. Then, just stash it away in an airtight container in the fridge. It should stay perfectly delicious for about 3 to 4 days. When you’re ready to reheat, just pop a serving back into a warm oven (around 350°F or 175°C) until it’s heated through. You can also gently warm it in a saucepan over low heat if you prefer.
Frequently Asked Questions About Sage Butternut Squash Gratin
Got questions about this creamy, dreamy Sage Butternut Squash Gratin? I love that you’re thinking through the details! Here are a few things folks often ask:
Can I make this gratin ahead of time?
Oh, absolutely! You can totally assemble the whole thing – slice the squash, make the sauce, layer it all up, and top with cheese – and then cover it tightly with plastic wrap and pop it in the fridge for up to a day. Just pull it out about 30 minutes before you want to bake it to let it come to room temp, then bake as directed, maybe adding a few extra minutes.
What’s the best way to slice butternut squash for gratin?
For the creamiest, most evenly cooked gratin, you really want those slices thin and uniform, about 1/8-inch thick. A mandoline slicer is my absolute favorite tool for this – it’s so quick and consistent! If you don’t have one, just get your sharpest knife and be super careful. The goal is even cooking so every bite is perfect.
Can I freeze Sage Butternut Squash Gratin?
You know, I honestly haven’t tried freezing it once it’s baked. Squash can get a little watery when frozen and thawed, which might mess with that lovely creamy texture. It’s definitely best enjoyed fresh or as leftovers within a few days.
What if I don’t have fresh sage?
No worries at all! If fresh sage isn’t in your spice rack, you can totally use dried sage. Just use about 1 teaspoon of dried sage and stir it into the cream mixture. It won’t have quite the same bright punch, but it will still be delicious!
Nutritional Information
Just a heads-up, the nutritional info can really vary depending on the exact brands you use and how perfect your squash slices are! But generally, you’re looking at roughly 350-400 calories per serving for this amazing Sage Butternut Squash Gratin. It’s got a good amount of healthy fats from the cream and cheese, some protein, and those lovely carbs from the squash. For more on making balanced meals, you can check out my tips on balanced eating!
Share Your Sage Butternut Squash Gratin Creation!
Have you made my Sage Butternut Squash Gratin? I would absolutely LOVE to hear about it! Drop a comment below and tell me how it turned out, or if you made any fun tweaks. And please, if you share a pic on social media, tag me – I can never get enough of seeing your delicious creations!

Sage Butternut Squash Gratin
Ingredients
Equipment
Method
- Preheat your oven to 375°F (190°C). Lightly grease a baking dish.
- In a saucepan, combine the heavy cream, milk, minced garlic, chopped sage, salt, and pepper. Heat gently over medium heat until warm, but do not boil. Remove from heat.
- Arrange the sliced butternut squash in the prepared baking dish in an even layer.
- Pour the warm cream mixture over the squash.
- Sprinkle the Gruyere and Parmesan cheeses evenly over the top.
- Cover the baking dish with foil and bake for 30 minutes.
- Remove the foil and bake for another 15-20 minutes, or until the squash is tender and the top is golden brown and bubbly.
- Let the gratin rest for a few minutes before serving.