Darina Allen: Load up on these classics for your summer picnics

"You'll probably have lots of delicious store cupboard staples ready for a spontaneous picnic. I love to have good sardines or mackerel, a tin or two of really good anchovies."

Darina's picnic-season selections

Hooray! July is officially National Picnic Month but why confine it to July? 

I’m a perennial picnicker, I virtually never leave home without a picnic.