Chipotle Sweet Potato Gratin

Chipotle Sweet Potato Gratin
When I was in first and second grade I lived in Logan Utah.  We had relatives in Salt Lake City (my mother’s cousin and her family) about an hour away and those holidays were my first clear memory of large family gatherings.  For Easter we’d get new clothing (usually sewn by my mother) and go out to a fancy brunch at a hotel in Salt Lake City.  It was like hitting the chocolate egg mother lode.
Thanksgiving was similar though we’d gather at someone’s home.  I remember lots of food but more profoundly, my first horrifying encounter with what I termed ‘Orange Juice Potatoes’.  No one bothered to explain what a sweet potato or a yam was at that point; I was left to my own buffet-table devices to take a scoop, complete with mini marshmallows studding the top, and sit down only to feel accosted by what I felt sure was a standard mashed potato dressed up in a thematically color-coordinated disguise and sickeningly sweet flavor.  The depth of the sweetness was unmanageable for me between the (what I now know was….) sweet potato, brown sugar and marshmallow.   I felt duped, disgusted and could not understand why anyone would put orange juice in unsuspecting mashed potatoes (which of course there was none despite the color and flavor suggesting as much).
Sweet Potatoes |
As an adult I realized they had been sweet potatoes.  My first encounter had been significant enough to cause artfully dodging them at any further holiday meal until, as an adult living outside Washington DC, deciding to put a spin on an ordinary Thanksgiving dinner we were hosting for a large group of family.
Thanksgiving is a tricky meal.  Everyone has their favorite dish and many of them are only made for this holiday or are a traditional staple never to be deviated from.  To risk a substitution that might leave diners feeling swizzled out of what makes Thanksgiving for them is daunting at best.
In my case this recipe ushered me from one marred by a sweet potato/yam ambush, to a huge fan.  I firmly believe there is not one dish on the planet containing chipotle chilies that I would not love.  The smoky flavor for me is a full seduction of the senses and regular readers know too well that  I love heat in my food.  Whether you are a sweet potato devotee or willing to stick your toe in the sweet potato pond, this is a unique and fabulous recipe you cannot pass up whether for Thanksgiving or a regular meal any time.
Chipotle Sweet Potato Gratin |
A brief word on Sweet Potatoes versus Yams.  Many use these terms interchangeably though they are different vegetables.  Most ‘yams’ consumed in the U.S. are really a colorful species of a sweet potato as true yams are very difficult to find here outside of some international markets.  I noted when breezing through two grocery stores back to back this week the same varieties of sweet potato called ‘sweet potato’ at one store and ‘yam’ at the second.  Should you care to know more, click here. 

Chipotle Sweet Potato Gratin

Prep Time: 15 minutes

Cook Time: 1 hour

Yield: 8-10 servings

A key thing I love about this dish, other than its natural flavor and nutrition, is the contrast to traditional Thanksgiving flavors. I think it serves to make all the dinner components a bit more exciting with its unexpected heat; like a feisty dinner guest!

This adaptation of the original recipe was from a misread on my part. The original recipe calls for 5 cups of cream. My version yields sweet potatoes lightly sauced as shown in the photos. Were you to desire a thick, cohesive casserole type dish, you can add more cream.


  • 2 tablespoons Unsalted Butter
  • 2 Chipotle Chilies in Adobo Sauce (for more heat add a 1 teaspoon of the Adobo Sauce from the can of chilies)
  • ¾ cups Heavy Cream
  • ¾ cups Whole Milk
  • 8 cups Sweet Potatoes, peeled and sliced 1/8-1/4 inch thick (I suggest using a mandolin to ensure uniform thickness)


  1. Preheat the oven to 325 degrees. Use the butter to grease a 4 quart baking dish.
  2. In a blender or food processor, process the chilies, cream and milk until smooth.
  3. Layer approximately 2 cups of the sliced sweet potatoes on the bottom of the prepared baking dish. Cover with approximately ¼ of the chile-cream mixture and some kosher salt and pepper. Repeat three more times, ending with the chile-cream and salt and pepper.
  4. Bake for 60 minutes, or until the potatoes are tender. During cooking spoon some of the chile-cream over the top of the casserole should the top of the potatoes appear dry. Serve hot or at room temperature.


Adapted from Southwest Cooking
Chipotle Sweet Potato Gratin -


  1. says

    I can only imagine the horror of biting into a big scoop of what you thought were mashed potatoes only to get an uber sweet marshmallowey mouthful! Enjoyed your post and this recipe!

  2. says

    These look lovely. I havn't had many chipotle chillies, only in mayonnaise so I would be interested to try them like this. It's nice to do something different or to…spice things up a little…no pun intended.

  3. says

    That it – sweet potatoes and chipotle in my Thanksgiving dinner! I love the idea of that spicy-sweet combination and I'm definitely going for a different take on Thanksgiving this year.

  4. says

    This looks fantastic! I've done a different sweet potato-chipotle gratin (from Mollie Katzen) that has tomatoes as well. Such a great combo – yum! 🙂


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