Sweetcorn, asparagus and tarragon salad with caper dressing

Method

1. Brush the corn cobs with oil, then barbecue until lightly charred and browned all over. Remove and, once cool enough to handle, slice off the kernels and put them in a bowl.
2. Blanch the asparagus in boiling salted water for 2-3 minutes, then refresh in cold water. Drain, cut into thirds and add to the corn. Halve the little gems lengthways, then cut each half into 4 wedges and add the wedges to the sweetcorn mixture.
3. Add half the tarragon to the salad and toss everything together. Just before serving, put the remaining tarragon into a small pan with the butter. Set the pan on the barbecue and cook the butter until nut brown in colour, shaking the pan from time to time. Take the pan off the heat, add the capers and leave to sizzle for 10 seconds, then add the  lemon juice and a little salt and pepper. Pour over the salad, toss once more, then serve.
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