Dosas are the highlight at this rudimentary Sri Lankan and South Indian caff in Tooting – along with the minuscule prices. A perfect dosa: crisp on the outside, moist and rice-fragrant on the inside, a perfect oval bent over in the shape of a curling leaf. The accompanying sambar (spicy lentil dip) is rich and sweet, in the Chennai style, the coconut chutneys fresh (though only in two variants: red or green). Most of these meals cost under £3.