Saute onion in oil in a saucepan
over medium heat. Stir in rice and cook until toasted, 3
minutes. Add water, tomato, tomato
paste and kosher salt and cumin; bring to a boil. Add
jalapeno. Cover; simmer 20 minutes. Remove from the heat and
let sit 5 minutes. Discard the jalapeno. Top with cilantro.