This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases. Please see the disclosure for more information.
I doubt I’ll ever make mashed potatoes the ‘old way’ again after making cedar-plank Cajun mashed potatoes. Mashed potatoes on cedar planks on a hot grill are incredible. The cedar flavor (and aroma) is not overwhelming, but it adds a wonderful new dimension to mashed potatoes. Add some Cajun butter and you have what is unquestionably the tastiest side dish you can possibly imagine. Did I mention that these potatoes also pack a little kick from the pepper jack cheese, smoked pepper and Cajun seasoning? Just the right amount of kick. My goodness were these ever amazing!

The Perfect Side Dish
I served these cedar-plank Cajun mashed potatoes alongside a delicious prime rib. I cooked it on my Char-Broil Big Easy oil-less fryer. It was the perfect meal.
I cooked the potatoes on my just-refurbished 15 year-old Weber gas grill, but any grill will do as long as you can fit the cedar plank onto it!
- Textured Grilling Planks for More Smoke and More…
- 5.5″. x 11.00″ x 1/3″ – Upgraded Thickness!
Cooking on cedar planks can really change the ordinary into something special, which is why I do it often. Check out my other cedar plank recipes: creamy mashed potatoes, Twinkies, beef sliders, chorizo portabellos, hot dogs, sausage sandwiches, shrimp and grits, meatloaf and spicy grilled shrimp.
Cedar-Plank Cajun Mashed Potatoes
Ingredients
For the mashed potatoes
- 3 pounds Russet potatoes peeled, quartered
- ¼ cup heavy cream
- ½ cup unsalted butter softened
- 2 cups pepper jack cheese shredded
- Kosher salt to taste
- 2 teaspoons ground black pepper
- 1 teaspoon Cajun seasoning
For the Cajun butter
- ¼ pound unsalted butter softened
- 1 teaspoon Cajun seasoning
- 1 ¾ teaspoons hot sauce
Instructions
For the mashed potatoes
- Bring a large pot of salted water to a boil. Add the potatoes and boil until tender, about 20 minutes. Drain well then return the potatoes to the pot.
- Add the remaining ingredients and mash the potatoes using a hand masher or mixer.
- Place potatoes into a resealable container in the fridge for 1 hour to set.
- Meanwhile, soak a cedar plank in water.
- Fire up your smoker for indirect cooking.
- When the potatoes have set, remove the plank from the water. Add the potatoes in a pile the full length of the plank.
- Make small indentations in the top of the potatoes and add small spoonfuls of the Cajun butter.
- Place plank onto the grill and grill 20 minutes or until the potatoes have turned golden brown and are heated through.
- Serve hot.
For the Cajun butter
- Combine all ingredients.
Notes
Nutrition
Nutritional values are approximate.
- Textured Grilling Planks for More Smoke and More…
- 5.5″. x 11.00″ x 1/3″ – Upgraded Thickness!


