425°F, a single layer, and the spacing that makes all the difference
The oven is preheated to 425°F (220°C) — hot enough to drive moisture out of the potato surface quickly and create a proper crust. A rimmed baking sheet lined with parchment paper simplifies cleanup without affecting the roast.
Potatoes are cut into 1½-inch chunks, a size that matters: too small and they dry out before the center cooks through; too large and the outside never crisps properly. Even sizing across all pieces ensures they finish at the same time.
The most critical technique tip is one that applies to almost any roasted vegetable but is especially important here: don’t crowd the pan. Potatoes arranged in a single layer with space between them roast and caramelize. Potatoes piled on top of each other steam — and steamed potatoes, however well seasoned, will never have a crispy edge. Total roasting time runs 40 to 45 minutes, with prep taking no more than 10 minutes.
Gluten-free, nut-free, vegetarian — and genuinely cheap to make
Beyond the technique, the recipe carries practical advantages that make it a reliable weeknight option. It is naturally gluten-free, nut-free, and vegetarian, which means it fits a wide range of dietary needs without any substitutions or adjustments.
The cost is equally notable. At under $3 for a dish that serves four to six people generously, this is one of the more affordable sides a home cook can put on the table. Potatoes and butter are staple ingredients that most households already have, which lowers the barrier further.
The result — described as «golden-crisp on the outside, pillowy-soft within, and glistening with old-fashioned buttery goodness» — comes from a method that requires one baking sheet and produces minimal cleanup. For a recipe with four ingredients and a ten-minute prep window, that is a significant return.
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