Uni tempura is a crispy and flavorful dish that combines the delicate taste of sea urchin with a light and airy tempura batter. To make uni tempura, you will need fresh uni, tempura batter mix, ice-cold water, vegetable oil for frying, and soy sauce for dipping. Start by preparing the tempura batter according to the package instructions. Make sure to keep the batter ice-cold by adding ice cubes to the water. Heat vegetable oil in a deep pan or fryer. Dip the uni in the tempura batter and carefully place it in the hot oil. Fry until the tempura becomes golden and crispy. Remove the uni tempura from the oil and place it on a paper towel to drain excess oil. Serve the uni tempura hot with soy sauce for dipping. The combination of the crispy tempura and the creamy uni creates a delightful contrast of textures and flavors that will make you fall in love with this dish.