The only time you're allowed to pass up a doughnut at the Doughnut Plant is for a churro. Though, come to think of it, the churros are quite small—you could easily swing both and still feel pretty awesome. Regardless, turn your attention away from the deep-fried rings for a second and concentrate on the churros ($1.50 each).
The plain churros are nothing spectacular, but pump in a delicate share of cajeta and everything changes—for the better, of course. The cajeta, a distinctive caramel made from goat's milk and sugar is something beyond lust worthy. I'd gladly buy the caramel by the jar if that were an option! Per usual Doughnut Plant protocol, make sure to go in the early morning for a fresh batch.