Grate peeled potatoes using the large holes of a grater.
Immediately place in a bowl of cold water to prevent browning and remove excess starch.
Rinse the shredded potatoes in a colander until water runs clear.
Place them back in fresh cold water if prepping other ingredients.
Drain with a slotted spoon and dry with paper towels. Spread them out and pat again until dry.
Grate or finely dice onion.
Dice ¼ bell pepper into small pieces (small enough to soften quickly but still visible).
Heat olive oil in a skillet over medium heat.
Add bell pepper and sauté until softened but not mushy.
Set aside. Do not add the onion yet.
In the same skillet, add 1 tbsp butter and the grated onion. Let it soften briefly.
Spread dried potatoes evenly over the skillet and season with salt and pepper.
Press down lightly with a spatula.
Cover and cook over medium-high heat for 5–7 minutes until golden and crispy on the bottom.
Flip carefully, cook the other side for another 4–5 minutes or until crisped.
Top with sautéed bell pepper and a slice of cheese if desired. Cover to melt.
Serve with chives, hot sauce, sour cream, or any of your favorite breakfast sides.
Bonus Waffle Hash Brown Method
Beat 1 egg with a splash of water and a pinch of salt.
Preheat and lightly oil your waffle maker.
Add shredded potatoes, sautéed peppers/onion, and drizzle the egg mixture over as a binder.
Close the waffle maker and cook until golden and crisp.
Serve with cheese and garnish with chives or herbs.