My brother begs me to make these every time he rumbles down our gravel driveway for a visit. I started doing potatoes this way years ago when I wanted something that tasted like a county fair foil packet, but without heating up the whole kitchen. You just toss three things together—potatoes, Cajun seasoning, and butter—wrap them up in foil, and let the slow cooker do the work.
The packets come out tender, buttery, and a little spicy, with hardly any dishes to wash. It’s the kind of simple, no-fuss cooking that fits right in on a busy farm day or a lazy Sunday afternoon.
These Cajun butter potato packets go well alongside grilled or slow-cooked meats—think pork chops, chicken thighs, or a simple skillet steak. I like to set the hot foil packets right on dinner plates and let everyone open their own at the table, almost like unwrapping a present.
A crisp green salad or some steamed green beans cools down the spicy kick nicely, and a slice of soft white bread or a dinner roll is handy for soaking up that melted seasoned butter in the bottom of the packet.
Slow Cooker 3-Ingredient Cajun Butter Potato Packets
Servings: 4
Ingredients
2 pounds small potatoes (baby red, gold, or fingerlings), scrubbed and halved if large
6 tablespoons unsalted butter, melted
2 tablespoons Cajun seasoning (store-bought or homemade)
Directions
Prepare the slow cooker and foil: Tear off 4 large sheets of heavy-duty aluminum foil, each about 12–14 inches long. Lightly crimp up the edges a bit so they’ll hold the potatoes and butter without leaking while you assemble. Set your slow cooker base and crock on the counter and make sure it’s clean and dry.
Season the potatoes: Place the scrubbed potatoes in a large mixing bowl. Drizzle the melted butter over the top. Sprinkle the Cajun seasoning evenly over the potatoes. Toss well with a big spoon or your hands until every potato piece is coated in the spicy butter. You want to see a light red-orange sheen on all the cut sides.
Fill the foil packets: Divide the seasoned potatoes evenly between the 4 foil sheets, piling them into the center of each sheet. If there’s any seasoned butter left in the bowl, scrape it out and drizzle it over the tops of the potatoes so none of that flavor goes to waste.
Seal the packets: Bring the long sides of each foil sheet up over the potatoes and fold them together tightly, then roll and crimp the ends to seal. You want snug, well-sealed packets so the steam and butter stay inside and the slow cooker stays clean. Shape them into compact bundles that will fit easily into your slow cooker crock.
Load the slow cooker: Arrange the foil packets in a single layer in the bottom of the slow cooker. If your slow cooker is smaller, you can lean a couple of packets up the sides or stack gently, but avoid smashing them. Put the lid on the slow cooker, making sure it fits securely over the packets.
Cook the packets: Cook on HIGH for 2 1/2 to 3 hours or on LOW for 4 to 5 hours, until the potatoes are very tender when pierced with a fork. Cooking time can vary a bit depending on the size of the potatoes and the heat of your slow cooker, so start checking a little early by carefully opening one packet and testing a piece.
Serve with no-mess cleanup: When the potatoes are done, turn off the slow cooker. Use tongs or oven mitts to lift the hot foil packets out of the crock and set them on plates or a platter. Let everyone open their own packet at the table to release the fragrant, spicy steam. Spoon any melted Cajun butter from the bottom of the packet over the top of the potatoes. When supper’s over, just toss the empty foil packets; the slow cooker crock should need little more than a quick wipe.
Variations & Tips
If you like things with a stronger kick, use a spicy Cajun blend or add an extra teaspoon of Cajun seasoning to the butter before tossing. For milder eaters or grandkids, cut the Cajun seasoning in half and add a pinch of salt so the potatoes are more buttery than hot. You can swap in smoked paprika-based Cajun blends if you enjoy a deeper, smoky flavor.
Use any small waxy potatoes you have—reds, Yukon golds, or a mix—just keep the pieces roughly the same size so they cook evenly. If you’re cooking for two, simply halve the recipe and make 2 packets instead of 4, keeping the same cooking time. To crisp the tops a bit, you can open the cooked packets and slide them under the broiler for a few minutes, foil and all, though that does mean dirtying a sheet pan.
For easy serving at a potluck, open all the packets directly into a warm serving bowl, scraping in every drop of the seasoned butter. Leftovers reheat nicely in a skillet the next day, and you can smash them lightly to make Cajun home fries for breakfast.