Taste and sprinkle with a pinch more salt if needed. Serve hot or warm so the edges stay flaky and crisp.
Variations & Tips
You can dress these up a little without losing the simple, almost-cheating vibe. For a garlic version, stir 1–2 finely minced garlic cloves or 1/2 teaspoon garlic powder into the melted butter before tossing with the potatoes. For a cheesy twist, sprinkle a teaspoon of finely grated Parmesan between a few layers of potatoes in each muffin cup, or just on top for the last 10 minutes of baking.
Potato stacker topped with herbs and sour cream
If you like herbs, add 1–2 teaspoons of dried thyme, rosemary, or Italian seasoning to the butter, or shower the finished stacks with fresh chopped parsley or chives. To make them dairy-free, swap the butter for olive oil or a neutral oil with a high smoke point, keeping in mind they may brown a bit faster.
For meal prep, you can slice and butter the potatoes a few hours ahead and keep them covered in the fridge, then stack and bake when you’re ready; just work quickly so the slices don’t discolor, and don’t soak them in water or they’ll lose the starch that helps them stick together.
Food safety notes: Always wash and scrub potatoes well to remove dirt and any surface bacteria. Discard any potatoes that are very soft, moldy, or have a strong off-odor. If your potatoes have green patches or large sprouts, cut those away generously or discard the potato, as the green parts can be bitter. Use a mandoline with the hand guard or a cut-resistant glove, and keep fingers tucked if using a knife to avoid injury. Store leftover stackers in an airtight container in the refrigerator and reheat thoroughly in a hot oven or air fryer until steaming in the center before serving.
