Step 1: Preheat the Oven: Start by preheating your oven to 425°F (220°C). A hot oven is essential for crispy potatoes.
Step 2: Prepare the Potatoes: Scrub the potatoes thoroughly under running water. Cut them into 2-inch cubes, ensuring they are evenly sized for consistent cooking.
Step 3: Mix the Ingredients: In a large mixing bowl, combine the olive oil, sea salt, black pepper, lemon zest, lemon juice, minced garlic, and rosemary. Stir well to create a fragrant marinade.
Step 4: Toss the Potatoes: Add the potato cubes to the bowl and toss them in the marinade until they are well coated.
Step 5: Arrange on a Baking Sheet: Spread the marinated potatoes on a baking sheet in a single layer. Make sure they are not overcrowded.
Step 6: Roast the Potatoes: Place the baking sheet in the preheated oven and roast the potatoes for about 30-35 minutes. Flip them halfway through to ensure even browning and crispiness.
Step 7: Serve and Enjoy: Once the potatoes are golden brown and crispy on the outside, remove them from the oven. Serve them hot, garnished with additional lemon zest or fresh herbs if desired.