My Polish grandmother made this every spring when money was tight. The tangy flavor is absolutely addicting and it costs pennies to make!

This slow cooker 3-ingredient poor man’s potato and sauerkraut is one of those humble, stick-to-your-ribs dishes that tastes like it came straight from a Polish grandmother’s kitchen. It’s built on simple pantry staples—potatoes, sauerkraut, and a little fat for richness—and turns them into something cozy, tangy, and deeply satisfying. My grandma used to make a version of this every spring when money was tight and we were stretching every dollar, and the slow cooker makes it even easier for busy families today. The potatoes get tender and golden, the sauerkraut mellows and caramelizes just a bit around the edges, and the whole house smells like comfort food for pennies.

Serve this right out of the slow cooker with a big spoon and let everyone help themselves. It’s wonderful alongside simple kielbasa or smoked sausage if you want to add protein, or with fried eggs on top for a budget-friendly supper. A slice of rye or crusty bread is perfect for soaking up the tangy juices. If you want to brighten the plate, add a side of sliced cucumbers with a little vinegar and salt, or a basic green salad. A dollop of sour cream or plain yogurt on the side is lovely for anyone who likes to cool down the tang a bit.

Servings: 4

2 tablespoons vegetable oil, bacon grease, or melted butter

Lightly grease the inside of your slow cooker crock with a little of the oil, bacon grease, or butter to help prevent sticking and to give the potatoes a richer flavor.

Spread the potato chunks evenly over the bottom of the slow cooker in a single, fairly even layer. This helps them cook through and get those soft, golden edges.

Drizzle the remaining oil, bacon grease, or melted butter over the potatoes, tossing them gently with clean hands or a spoon so most of the pieces get a light coating.

Give the sauerkraut a quick taste. If it’s very salty or extra tangy, you can briefly rinse it in a colander under cool water, then squeeze out some of the liquid with clean hands. If you love that strong tangy flavor (like my grandma did), skip rinsing and use it straight from the jar or bag with all its juices.

Layer the sauerkraut evenly over the potatoes in the slow cooker, pouring in enough of the sauerkraut juices to come about halfway up the potato layer. Gently press the sauerkraut down with the back of a spoon so it sits snugly over the potatoes.

Cover the slow cooker with the lid and cook on LOW for 6 to 7 hours, or on HIGH for 3 to 4 hours, until the potatoes are very tender when pierced with a fork and the sauerkraut on top looks glossy and slightly caramelized around the edges.

Once cooked, gently stir from the bottom so some of the potatoes and sauerkraut mingle, but don’t overmix—you still want to see tender golden potato chunks nestled among the shreds of sauerkraut.

Taste and adjust the seasoning if needed. If you rinsed your sauerkraut, you may want a small pinch of salt. If it’s too tangy for a family member, they can mellow their portion with a bit of butter or sour cream at the table. Serve hot, straight from the slow cooker, while wisps of steam are still rising.

If you have a few extra pantry items, you can dress this up without losing its poor man’s charm. For a Polish-inspired twist, add 1 teaspoon caraway seeds and a small sliced onion on top of the potatoes before adding the sauerkraut. For meat eaters, tuck a few pieces of sliced kielbasa or smoked sausage between the potato and sauerkraut layers; it will flavor the whole dish. Picky eaters who aren’t sure about sauerkraut might like half sauerkraut and half drained, rinsed canned potatoes or shredded cabbage to soften the tang. If you want a creamier version, stir in 2 to 3 tablespoons of butter right before serving. For a slightly sweeter, more kid-friendly flavor, mix in 1 small, peeled, sliced apple with the sauerkraut. Food safety tips: Always keep sauerkraut refrigerated until you’re ready to use it, and don’t leave this dish at room temperature for more than 2 hours after cooking. If you add meat, make sure it’s pre-cooked or sliced smoked sausage, and cook the dish until the internal temperature reaches at least 165°F. Cool leftovers quickly and store them in the refrigerator in a covered container for up to 3 to 4 days; reheat thoroughly until steaming hot before serving.