Very good
- Carbohydrate 27.9762743815827 g
- Cholesterol 0 mg
- Fat 7.02761228238933 g
- Fiber 3.05428486649393 g
- Protein 3.38756485199231 g
- Saturated Fat 1.0042313242653 g
- Serving Size 1 1 Serving (180g)
- Sodium 228.914981601237 mg
- Sugar 24.9219895150887 g
- Trans Fat 0.267909151281578 g
- Calories 183 calories
Step-by-step
- Preheat the oven to 400 degrees F.
- Cut the potatoes in half or quarters and place in a bowl with the olive oil, salt, pepper, garlic and rosemary; toss until the potatoes are well coated. Dump the potatoes on a baking sheet and spread out into 1 layer; roast in the oven for at least 1 hour, or until browned and crisp. Flip twice with a spatula during cooking to ensure even browning.
- Remove the potatoes from the oven, season to taste, and serve.
Unlike boiled potatoes, which rely on water molecules to soften cell walls through uniform moist heat, roasted potatoes depend on direct lipid conduction at high temperatures to achieve a contrasting texture. When small red or white-skinned potatoes meet olive oil in a 400 degrees F environment, thermal energy transforms surface moisture into steam while the fat molecules rapidly conduct dry heat, causing the exterior starches to undergo Maillard browning and dehydration simultaneously. This process requires spreading the pieces into a single layer on a baking sheet; overlapping pieces trap steam, leading to localized boiling rather than crisping. Flipping the tubers twice during the one-hour cooking window redistributes the oil film and ensures uniform contact with the hot metal surface, which prevents scorching on the bottom faces while developing an evenly browned crust.
Minimizing moisture is critical for success, meaning that substituting waxier varieties with high-starch russets will yield a fluffier interior texture, though they may break apart more easily during the aggressive tossing stage. Fresh rosemary leaves release aromatic essential oils like rosmarinic acid directly into the lipid phase, allowing the fat to carry herbal compounds across the entire surface area of the vegetable as the garlic sugars caramelize without burning prematurely.
