Add the black-eyed peas, the water and the crushed red pepper.
The amount of pepper you put in this dish is up to you. You
can skip it totally if you want but this tiny hint of spice
gives the dish a little zing!
When the black-eyed peas are warmed through, add the vinegar
and then the spinach. Stir until the spinach "wilts"
which means it will get soft and slightly darker in color.