Storage: Store in an airtight container in the refrigerator for up to 3 days. The flavor deepens as it sits. Cucumber choice: English or Persian cucumbers are best for their crisp texture and thin skin. Spice level: Adjust the gochugaru to your preference — start with ½ tsp for mild, use 2 tsp for a significant kick. Smashed variation: Instead of slicing, smash cucumbers with the flat of a knife and tear into rough pieces for extra texture and dressing absorption. Serving suggestion: Pairs beautifully alongside gochujang noodles, grilled salmon, or steamed rice.