Wash, peel and cut potatoes into ½ inch pieces. Peel and slice the onion, set aside.
Heat the oil and butter in a skillet over medium heat.
Add potatoes to skillet and spread out into a single layer as much as possible.
Fry for 20 to 25 minutes over medium heat. Don’t stir the potatoes for the first 5 minutes allowing them to form a crust. Then after 5 minutes stir, flipping them over.
Continue frying, stirring only every 5 minutes, no more often than that.
After 10 minutes of frying, add the sliced onion, salt and pepper. Stir through and continue cooking, allowing the onion to soften and become sweet and golden.
When the potatoes are nearly finished, stir in the paprika.
Serve hot.
Notes
Russet or other starchy potatoes are best for this recipe, but any all-purpose potato will work.
Cut potatoes into even pieces and pat them dry with a paper towel.
Use a large skillet and heat the oil over medium heat.
Add potatoes to the hot oil in a single layer. Don't crowd the pan.
Cook potatoes over medium heat, avoiding constant stirring. This helps them brown.
At the end, taste the potatoes and add salt and pepper as needed. Potatoes need a decent amount of seasoning.