Servings: 8 Prep: 20 mins Cook: 1 hr Total: 1 hrs 20 min
Before I say anything, I should point out that this recipe is higher in carbs than most of my recipes. If you’re deep in ketosis, or working on induction, you might want to look away. LOOK AWAY! This recipe will grab you and suck you in. Before you know it, you’ll be in the store, jumping into that big pile of sweet potatoes in the produce section, much in the same way your kids jump into the giant tub of balls at Chuck E. Cheese.
This recipe is here because not everyone eats as low as I do. I recently asked on Facebook what the carb levels of my readers were. About half were within ranges similar to my own, but the other half had a higher capacity for carbs. This is for them. There are ALSO times where I’ll up my allowance for the occasional splurge. Planned departures, in my opinion are good, fun, delicious, remind us that we really can eat anything (as long as it’s got its place, within a grander plan) and FINALLY, it keeps the body guessing! A third reason this is here is for company. Let’s face it, the Standard American Diet (SAD) tends to include heavy amounts of starch (ie. steak and potatoes). I believe the USDA (wrongly, in my opinion) recommends we get something upwards of 65% of our daily calories from carbohydrates. Because of these recommendations, there are certain expectations of a meal, and by extension, the host! It becomes a bit of a challenge to offer a borderline mandatory starch, in a world without starch! This is one of those low-carb starches that NO one will scoff at. They will, in fact, ask you for the recipe.
Give it to them!
I love sweet potatoes. I think they’re amazing in just about every way I’ve ever had them. In this case, I’ve paired them with celeriac. This is done for two reasons. 1. I like the color contrast of the two colors alternating in the slices. It’s purdy! 2. Celeriac is lower in carbs than sweet potatoes, but tend to get a bit lost in the flavor. As a result, it lowers the carbs of the dish, while carrying the flavors and textures of the sweet potatoes (as well as the luscious cream and cheese!). ☺
In terms of flat out flavor, this is 10 out of 10. I’m usually fairly critical of my recipes and do my best to portray them honestly, and as I see them. This is probably in my top 10 of all recipes across my site. It’s a treat to die for, but … that’s just it. It’s a treat.
Note: I used a mandolin to cut the potatoes really thin. You could do this with a knife, but be careful and keep the slices as thin and consistent as possible.
Sweet Potato and Celeriac Au GratinPrint Rate
- 1 1/2 lbs sweet potatoes
- 1 giant celery root
- 1 tbsp butter
- 1 1/4 cups cream heavy whipping
- 1 1/2 cups parmesan cheese grated
- 1/2 tsp nutmeg freshly ground
- salt and fresh cracked pepper to taste
- Pre-heat oven to 350 F.
- Peel and slice your celeriac and sweet potatoes, with a mandolin. Make two separate piles. Then, separate each pile into 4 piles. You should now have 8 piles, all about the same size.
- Butter the inside of a baking pan (I used a 9"x9" square).
- Start by placing a thin, consistent layer of celeriac slices. It should entirely cover the bottom of the pan. Sprinkle a small amount of salt on the layer. Next, add a thin, consistent layer of sweet potatoes. Make sure your layers are even and not thicker in the middle. Season with a little salt and pepper. Drizzle 1/4 cup of cream fairly evenly around the layer. Sprinkle 1/4 cup of grated parmesan cheese over the sweet potatoes. Finally, give a light dust of nutmeg. Repeat these steps, alternating layers and seasoning each layer with a little salt, pepper, nutmeg and a bit of cream and parmesan. When done, top with the final 1/4 cup of cream and a 1/2 cup of parmesan cheese.
- Place your pan, uncovered, in the oven and allow to bake for about 45 minutes. When a knife can be entered easily into the center of the dish, it is ready. If it gets prematurely dark, feel free to cover with a bit of aluminum foil, but be sure to poke some holes in it. It may take a bit more than an hour, depending on how thick you made it, but it will get there.
- When done, remove it from the oven and allow it to sit for 15 minutes, before slicing. This will allow it to firm up, a bit.
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