Follow these simple steps to achieve crispy homemade McDonald’s hash browns:

1. Prep the Potatoes: Peel the russet potatoes and rinse them under cold water to remove excess starch.
2. Grate Potatoes: Use a box grater to grate the potatoes into a bowl. This will create the right texture for your hash browns.
3. Remove Excess Water: Place the grated potatoes in a clean kitchen towel and squeeze out as much moisture as possible. This step is crucial for crispy hash browns.
4. Mix Seasonings: In a bowl, combine the grated potatoes, salt, pepper, onion powder (if using), and cornstarch. Mix until evenly coated.
5. Heat Oil: In a large skillet, add enough vegetable oil to cover the bottom. Heat it over medium-high heat until shimmering.
6. Form the Hash Browns: Scoop a handful of the potato mixture and form it into a patty or a hash brown shape. Carefully place it in the hot oil.
7. Fry: Cook for about 3-4 minutes on each side or until golden brown and crispy. Remove from the skillet and drain on paper towels.

These steps provide an incredibly straightforward way to enjoy crispy homemade McDonald’s hash browns anytime!