Thimpu de carachi
Around the shores of Lake Titicaca, thimpu is weekday food and Lent food alike: carachi, a small native lake fish, laid over potatoes and chuño (freeze-dried Andean potato) and gently poached, then drenched at the table with a hot sauce of onion fried with ají. The fish is soft and delicate, the chuño earthy and pleasantly chewy, and the sauce brings colour and fire. Outside Puno, small whole trout, tilapia or perch, or thick trout fillets, work well. Chuño needs an overnight soak (plan for it) and is sold in Andean and Latin shops; swap in extra waxy potatoes if you can't find it. The trap here is boiling the fish hard so it falls apart; keep the water at a bare shiver. Chef's tip: make the sauce while the fish poaches and spoon it on boiling hot, so it sizzles over the plate.























