Roasted Potatoes with sage

1 pound potatoes fingerling or red new potatoes, washed 1 tablespoon olive oil 1 each yellow onion halved and thinly sliced 2 cloves garlic or to taste,[...]

1 1/2 lbs small potatoes , halved 1/3 cup flour 1 1/2 tablespoons oil 4 garlic cloves , minced 1/4 cup sage leaf , chopped 1 tablespoon unsalted butter kosher[...]