Prepare the Potatoes:

• Slice potatoes into 1/2-inch cubes or thin rounds for even cooking.
• Rinse the potatoes under cold water and soak them in a bowl of cold water for 30 minutes to remove excess starch.
• Drain and pat potatoes dry with paper towels.

Heat the Pan:

• Heat oil or bacon grease in a large cast-iron skillet over medium-high heat. Ensure the oil is hot but not smoking.

Cook the Potatoes:

• Add the potatoes to the skillet in a single layer. Cook for 5-7 minutes without stirring to let them brown.
• Flip the potatoes gently with a spatula and cook for another 5-7 minutes, flipping occasionally until golden brown and crispy.

Add the Onions:

• Add sliced onions to the skillet, stirring them gently into the potatoes.
• Cook for an additional 5-7 minutes until onions are caramelized and potatoes are fully tender.

Season and Garnish:

• Sprinkle with salt, pepper, and paprika (if using). Toss to combine.
• Garnish with fresh parsley for a pop of color.

Serve:

• Serve hot as a side dish or enjoy on its own.