Lay two slices of fish cake and one shiitake mushroom over each portion of noodles, then ladle the dashi broth into the bowls. Sprinkle with the minced spring onion. Arrange the tempura on a platter.
1. In a large mixing bowl, put plain flour, cornflour and baking powder and combine. Make a well in centre. 2. Gradually add iced water, whisking to just combine ingredients. Don’t overmix.