Peel potatoes, and grate on the large holes of a box grater. Place grated potatoes in a clean kitchen towel, and squeeze tightly, removing all excess moisture.
Heat a 10-inch nonstick skillet over medium-high heat, and add 1 teaspoon canola oil. When very hot, add grated potatoes, and season with salt and pepper. Use a spatula to press potatoes into a flat, round shape. Reduce heat to medium, and cook, shaking pan periodically, until pancake is nicely browned, 5 to 7 minutes. Flip pancake, and add remaining teaspoon of oil, drizzling around the edges of pancake. Gently swirl pan to distribute oil. Season again with salt and pepper. Continue cooking until golden brown and crisp on both sides, 5 to 7 minutes more.
Transfer to a cutting board; cut into wedges. Serve immediately.