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1
Mix the tempura batter:.
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2
Sift the flour, cornstarch, and salt into a large bowl and set it over a bowl of ice water.
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3
Slowly whisk in the sparkling water, and then stir in the sesame seeds.
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4
Leave the batter for 15 to 30 minutes so the flour starches expand and thicken slightly.
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5
After standing, it should be the consistency of thin pancake batter.
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6
If it is too thick, stir in more sparkling water.
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7
To finish:.
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8
Heat a 3/4 inch layer of oil to 375 degrees in a large saute pan or skillet.
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9
Coat and fry the vegetables and shrimp until golden, working in batches.
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10
Allow 2 to 3 minutes got shrimp; for vegetables the timing will vary from 3 to 5 minutes, depending on the type.
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11
Transfer the cooked shrimp and vegetables to a rack lined with paper towels and keep them warm in a low oven with the door open while you fry the rest.
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12
To serve:.
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13
Pile the fritters loosely on a large platter, or arrange a sampling on individual plates.
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14
Be sure not to pile them too closely together or they will steam and lose their crispness.
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15
Getting ahead:.
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16
Prepare the batter, vegetables, and shrimp up to 4 hours in advance, storing them covered in the refrigerator.
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17
Fry everything at the last moment.