In a medium saucepan, add red potatoes and water to cover. Simmer until cooked through, drain and cool. Thinly slice the potatoes.
In a large skillet, add olive oil and butter. Add onions and cook over medium heat until caramelized, about 10 to 15 minutes. Add potatoes and brown, turning only once with a spatula to prevent breaking up the potatoes. Add house seasoning, to taste.
1 cup salt
1/4 cup black pepper
1/4 cup garlic powder
Mix ingredients together and store in an airtight container for up to 6 months.