In a mini food processor, pulse the coconut with 1 tablespoon water to rehydrate it.
2)
In a large bowl, mix the salt, flour and coconut. Add water, a little bit at a time, and knead until smooth and elastic. Using kitchen gloves, add the jalapeño and red onion and incorporate. Cover and let the dough rest for 30 minutes or overnight.
3)
Form 10 balls, about the size of small tangerines, from the dough.
4)
On a dinner plate, put 2 tablespoons of olive oil. Using your fingers and the palm of your hand, shape the dough ball into a circle on the plate.
5)
Heat a skillet over medium heat. Cook the roti for about 4 minutes on each side.