Choose starchy potatoes like Russets for best crispiness. Avoid overcrowding the pan by frying in batches if needed. Dry potatoes thoroughly before frying. Adjust chili flakes to your preferred spice level. Serve immediately for best texture. Variations include adding toasted nuts, using different herbs like parsley or mint, adding tahini for creaminess, or baking instead of frying at 425°F (220°C) for 25-30 minutes.