Tempura (Vegetables and Prawn)

Instructions

1. 1

   Prepare a dipping sauce by combining dashi broth, mirin, and soy sauce in a small saucepan. Heat gently over medium heat for 2 minutes until warmed through, then set aside to cool. This is tsuyu, the traditional tempura dipping sauce.

2. 2

   Pat the shrimp dry with paper towels and make shallow cuts along the belly to prevent them from curling. Set all vegetables and shrimp on paper towels and allow them to reach room temperature and remove any surface moisture.

3. 3

   Fill a large, heavy-bottomed pot or wok with oil to a depth of 3 inches (7.5 centimeters). Insert a cooking thermometer and heat the oil to exactly 350 degrees Fahrenheit (175 degrees Celsius). This temperature is critical for light, crispy results.

4. 4

   Prepare the batter immediately before frying by whisking together cake flour, cornstarch, and salt in a bowl. Create a well in the center and add egg yolk and ice water. Whisk gently with chopsticks or a fork until just combined, leaving some lumps in the batter. Overworking creates tough tempura. The batter should be the consistency of thin pancake batter.

5. 5

   Working in small batches of 4 to 5 pieces, lightly dust vegetables and shrimp in dry flour to help the batter adhere. Immediately dip into the cold batter, coating completely but briefly, then carefully place into the hot oil. Do not crowd the pan, as this drops oil temperature and creates greasy tempura.

6. 6

   Fry for 2 to 3 minutes for delicate vegetables like zucchini and mushrooms, 3 to 4 minutes for shrimp and thicker items like sweet potato, until the batter turns pale golden and floats to the surface. Use chopsticks to turn pieces halfway through cooking for even browning.

7. 7

   Remove cooked tempura with a wire mesh skimmer or slotted spoon and drain on paper towels. Maintain oil temperature between 340 and 360 degrees Fahrenheit (170 to 182 degrees Celsius) throughout cooking, allowing 2 to 3 minutes between batches for oil to recover.

8. 8

   Serve tempura immediately while still warm and crispy, arranged on a plate lined with parchment paper. Provide small bowls of tsuyu dipping sauce alongside grated daikon and ginger on the side, allowing diners to customize their sauce with these garnishes.