Parsnip Gratin with Gruyere and Thyme- a deliciously decadent vegetarian side dish, perfect for special gatherings or the holiday table! Video.
This is the Best Recipe for Parsnips
Parsnip Gratin will become your new favorite parsnip recipe. Decadent, earthy, sweet, and lovely, the flavors are wonderfully surprising! As a chef, I love taking humble ingredients and helping them shine —and this parsnip gratin recipe does just that!
Parnips are so soulful to me. You would never know that their rough and tumble exterior would house such sweetness, earthiness, and depth, kind of like my favorite people! 😉 I hope you give parsnips a try and experience their goodness for yourself. You’ll love this side dish – the recipe comes straight from my catering business and was always a huge hit. The aroma wafting from the oven alone will win you over -it’s just heavenly.
Ingredients in Parsnip Gratin
- Parsnips- similar in size.
- Onion and Garlic- for savory depth.
- Heavy whipping cream – do not sub half and half or milk
- Fresh thyme– for savory complexity, or substitute fresh sage.
- Butter– for greasing the pan
- Spices: fresh nutmeg (or ground), white pepper, salt and pepper
- Flour (or sub rice flour)
- Gruyere cheese
How to Make Parsnip Gratin With Gruyere and Thyme
Step one: Prep the parsnips. It starts with peeling the parsnips.
Slice them very thinly– a mandoline makes this easy.
Step two: Thinly slice an onion.
Step three: Generously butter a 6×9 baking dish.
Step four: Assemble. Begin layering parsnips, onion, gruyere and a little thyme.
TIP: It’s OK if the bottom and middle parts are a little messy. Reserve some of the larger more uniform pieces of parsnip for the top and arrange in nice, even, overlapping rows.
Step five: Cream Sauce. Heat heavy cream and whisk in minced garlic, salt, fresh nutmeg, white pepper, flour and thyme.
Pour cream mixture over the layered parsnips, tilting and shaking the pan so liquid coats all the nooks and crannies.
Step six: Top with the remaining gruyere, a sprinkling of thyme and a pinch of nutmeg.
TIP: Freshly ground nutmeg is more aromatic than the pre-ground spice. Buy whole nutmeg (often sold in jars in the spice section of supermarkets) and scrape it against the finest holes of a box grater, or use a micro-plane grater. It’s totally OK to use ground nutmeg, but whole will give the dish that extra special flavor.
Step seven. Bake: Cover tightly with foil and place in a 400°F oven. Bake 50 minutes or until fork-tender. Remove foil and bake 15-20 minutes uncovered, until golden and bubbly. Let it stand for 15-20 minutes before serving so it has a chance to thicken and set up.
What to Serve With The Best Parsnip Recipe
Serve this as a side dish with Chicken Pot Pie or Chicken Marsala, or Pan-Roasted Chicken with Grapes. It’s a delcious addition to the holiday table with Oven Roasted Turkey and Homemade Green Bean Casserole.
Storing Parsnip Gratin With Gruyere and Thyme
Leftovers will keep up to 4 days in an airtight container in the refrigerator. Reheat in a warm 350°F oven or microwave.
Parsnip Gratin Recipe Tips
Normally, with recipes, I recommend playing around with them. For this recipe, however, there are a few tips that will help ensure a successful outcome.
- Firstly, do not substitute whole milk or half & half for the heavy cream, or the gratin will end up watery.
- Pecorino or Manchego cheese can be substituted for the gruyere.
- Feel free to substitute Yukon gold potatoes or peeled russets for half of the parsnips.
- Using a mandolin makes this so much easier to make. If you don’t have a mandolin, slice parsnips as thinly as humanly possible.
- Lastly, it’s imperative to let this sit 15-20 minutes before serving, to ensure it sets up nicely and thickens.
- This can be made ahead, baked ahead and reheated before serving. It’s actually quite good reheated.
Faq
Parsnips are a root vegetable that looks like a white carrot and belongs to the Apiaceae family. You’ll recognize them by their cream-colored skin and flesh.
Parsnips taste sweet, earthy, with a hint of spice and nuttiness.
Parsnips have a lot of health benefits – high in fiber, vitamins C, K, and folate.
On the home front: Getting to know parsnips means looking beyond their rough skin to find their surprising sweetness. Have you ever met someone who seemed a bit rough at first, someone you didn’t expect to get close to, but after spending time with them, you began to understand their tough exterior and see their hidden kindness? These are the parsnips of the world. The ones who nourish us in their own special way.
More Favorite Parsnip recipes
- Roasted Parsnips with Romesco Sauce
- Parsnip Soup with Toasted Hazelnuts
- Butternut Squash Gratin with Leeks, Sage and Walnuts
- Cauliflower Gratin with Garlic and Sage
⭐️ Don’t forget to rate it, and please let us know what you think of this recipe in the comments below! xoxo Sylvia
Watch How to Make It
Parsnip Gratin with Gruyere and Thyme
- Prep Time: 30
- Cook Time: 75 minutes
- Total Time: 1 hour 45 minutes
- Yield: 8
- Category: Side dish, vegetarian
- Method: baked
- Cuisine: Pacific Northwest
- Diet: Vegetarian
Description
Ingredients
- 2 1/4 –2 1/2 lbs Parsnips
- 1 medium onion- yellow or white
- 3 cups heavy whipping cream ( do not sub half and half or milk)
- butter for greasing pan
- 1/4 tsp fresh nutmeg ( or ground), more for the top
- 1/4 tsp white pepper
- 1 1/4 tsp kosher salt
- 1 T Fresh Thyme
- 1 T Flour or Rice Flour
- 3 large minced cloves garlic
- 6 –8 ounces, grated gruyere cheese
Instructions
- Preheat oven to 400 F.
- Peel the Parsnips and using a mandolin, slice parsnips to 1/8 thin slices. The thinner the slices the faster this will bake. If you don’t have a mandolin, slice them as thinly as humanly possible! 😉 Thinly slice the onion and grate the cheese.
- Generously grease a 9 x13 inch baking dish with butter.
- Layer the parsnips and onion with 2/3 of the cheese and ⅔ of the thyme -saving the rest for the top- and reserving the more perfect pieces of parsnips for the final top layer. Press down and make sure layers are even. It’s OK if the inside layers are messy. Place the last layer of parsnip slices in nice looking overlapping rows.
- In a small pot, heat 3 Cups heavy whipping cream. Whisk in salt, nutmeg, the remaining thyme, white pepper, flour and the garlic and when it just comes to a simmer, pour over the layered parsnips, slanting the baking dish to get the cream in all the nooks and crannies. Sprinkle the remaining cheese over the top, a few more leaves of thyme and a little sprinkling of nutmeg. Cover securely with a lid or foil and bake for 50-60 minutes on the middle rack until parsnips are fork tender. Check, Remove foil, pierce with fork, parsnips should be al dente. (If not- your parsnips were perhaps cut thicker that 1/8 of an inch, and you will need to cook longer with the foil on.) Also, don’t worry if it seems watery at this point.
- Once fork tender, remove foil and bake another 15 minutes uncovered , or until golden and bubbly. It is important to let it sit at room temp for 15-20 minutes before serving, so it sets up and thickens.
- You can also make this all ahead, and simply reheat before serving.
Notes
You can also substitute half of the parsnips with potatoes.
Nutrition
- Serving Size:
- Calories: 524
- Sugar: 9.1 g
- Sodium: 481.9 mg
- Fat: 42.1 g
- Saturated Fat: 25.7 g
- Carbohydrates: 28.5 g
- Fiber: 6.8 g
- Protein: 10.8 g
- Cholesterol: 128.1 mg
Made this tonight, absolutely delicious, thanks for the recipe! 🙂
Just leave the onions out! It will still taste great.
I only recently discovered Parsnips and quickly feel in love with them! I can’t wait to give this recipe a try. It sounds divine!
Carole’s Chatter is collecting links using parsnip and/or pumpkin today. This is a nice one. I do hope you pop over and link in. This is the link . Cheers
It’s snowing here in Denver, and I decided to give this recipe a try. So yummy! I will definitely make this again.
We’re pretty big on root vegetables in my house so I was instantly drawn to your recipe. I love grueyere and was worried that the parsnips would make the whole dish taste too sweet and carroty, but everthing was so well balanced and for whatever reason, the dish just works…marvelously! I loved the way this turned out and can easily see making it again and again!
I just made this for the first time today for Thanksgiving dinner and it was so good! Everyone loved it. And they were all excited to try parsnips because most people had not ever before. Thanks for this recipe!
This looks so fabulous! I’m gonna try it for Thanxgiving. Wish me luck (I am VERY cooking-challenged).
Good luck 🙂 It’s pretty strait forward!
Sylvia, the dish was flawless. Everyone loved it, not to mention how impressed they were that *I* pulled off something so pretty! I think I want to try it with potatoes next time. Thanx again!
I’ve just tried out your recipe for dinner, what a great success! Thanks for sharing! Love it!
I am glad you liked it! Thank you!
Yummmmm…you have me salivating. I’m on a mission to introduce more and more veggies to my family. We’re trying things we’ve never tried before and I just happened to pick up some fresh parsnips the other day. Now I need to get some fresh thyme and heavy cream and I’m set!
This looks delicious! I am making it for a crowd of my best friends and their significant others. I got parsnips in my CSA delivery, but only 1 lb. I also got sweet potatoes and butternut. Do you think it would taste good if I did 1/2 parnsip and 1/2 butternut or 1/2 parsnip and 1/2 sweet potato?
Yes, try it with the sweet potatoes, I am sure it would taste great. I’ve mad it before with 1/2 potatoes ….and it was good too.
This truly sounds awesome! I am making this for Thanksgiving! How far in advance can I prepare it? Should it be fully cooked before freezing? Please advise.
You can make 3 days ahead and reheat before serving. I have never tried freezing it. If you do try it, please let me know how it works. Thanks!!
I love parsnips! The combination of parsnip and thyme is always delicious – even in a soup! This gratin is right now in my oven and it smells sooo good.Thanks for sharing this great reicpe! Your pictures are lovely, too!Best,Maja
Isn’t it the best smell?
I don’t understand how someone could not like parsnips! They are magical in their deliciousness. This gratin looks amazing and will definitely be gracing my table soon!
This looks amazing! I’m totally making this and bringing it to a potluck this month.
This looks incredible. I am trying this tonight!
I love your blog! Reading it always makes me so hungry. The pics and recipes are great.I’ve nominated you for the Very Inspiring Blogger Award, you can check it out here:http://likethistrythat.wordpress.com/2012/11/07/we-interrupt-our-regularly-scheduled-program/
Thank you so much! What a sweet thing to do. I really appreciate it!
I actually like parsnips, but almost never cook them. This gratin really does sound heavenly, though. Now I just need to get my hands on some parsnip before I can try it.
I just found your blog via tastespotting, and have to say I really love it. Beautiful photography!
Thanks Lena. You share my finnish aunts name. Her name is spelled Leena though 🙂
This looks divine! Am a parsnip fan but never use them. This will be my Thanksgiving dish to bring, thanks!!
It’s perfect for thanksgiving! Enjoy.
Who could not love a parsnip? The gratin, and photos are lovely. I agree about the cream, the fresh nutmeg, and thyme. I have to try this!
I know! Right? Thanks Sue!
AHHHHH I LOVE THIS!!!! I need potatoes to survive. And cheese. And herbs. Love this! WILL HAVE TO MAKE!~ nerdwithtaste.wordpress.com
The parsnips will give a nice earthy flavor. You could do with with half parsnips, half potatoes….it would be good too!
I love parsnips. Usually I simply roast them with a little honey or maple syrup but this gratin sounds heavenly – can’t wait to try it.
I love them roasted as well. So good!
This looks truly delicious. I have a confession; I have never eaten a parsnip. But I will soon! Thank you for sharing. Also, I am eyeing mandolins. Do you have one you recommend?
I am in the market for a good mandolin too! Mine is old and in its last days. The all stainless steal ones look really nice, but quite pricy. Let me know what you end up picking!
I’m a parsnip newbie. I’ve been meaning to try them, and this recipe is guaranteed to make me love them! Thanks for sharing. I’m glad I stumbled onto your site! Found you on FoodGawker btw! 🙂
thanks Rachel! Good to know about Foodgawker….easy to get lost in all the amazing photo’s there 🙂
While I have nothing against parsnips, I cook with them very rarely – mostly because I haven’t found the right recipes yet, I think. This looks like a great way to way to prepare parsnips, although I don’t think you can ever go wrong with cream, cheese and thyme when cooking with vegetables. I’ll definitely be trying this as soon as possible!
Let me know how it turns out!