How thin should I slice the ribeye steak?
Slice the steak as thin as possible—about 1/8 inch or thinner. Partially freezing the steak for 30 minutes makes slicing easier and ensures even, quick cooking.
How do I caramelize onions properly?
Cook sliced onions low and slow in olive oil or butter for 30–40 minutes, stirring occasionally, until they're golden brown and sweet. Don't rush this step.
Can I make the cheese sauce ahead of time?
Yes, prepare the cheese sauce up to 2 days ahead and store it in the refrigerator. Reheat gently on the stovetop or microwave before serving to avoid breaking.
What type of semolina roll should I use?
Look for a sturdy, fresh seeded semolina roll from a bakery or quality grocer. Toast it lightly to add structure and prevent sogginess from the warm steak and sauce.
How do I know when the steak is cooked through?
Cook the sliced steak in a hot skillet for just 1–2 minutes total—it should be seared and warm. Since the pieces are thin, they cook very quickly; avoid overcooking.