The potatoes should look glossy with visible onion flakes clinging to the skins.
Cover the slow cooker with the lid and cook the potatoes on LOW for 4 to 5 hours, or on HIGH for about 2 to 3 hours, until the potatoes are very tender when pierced with a fork. During the last hour of cooking, lift the lid once or twice and gently stir so the butter and onion coating redistributes and the potatoes cook and brown evenly along the edges.
Once the potatoes are fork-tender and coated in a rich, dark, glossy onion-butter sauce, turn off the slow cooker. Give them one last gentle stir to pick up any flavorful bits from the bottom of the crock. Spoon the potatoes onto a white plate or serving dish, letting the caramelized onion butter drizzle over the top, and serve hot.
Variations & Tips
If you like a little
