I never cooked dried pinto beans until the fantastic Cook's Illustrated Drunken Beans recipe. Wowsa, that's a great approach that develops a really flavorful and interesting pot of beans.
However, it's not quite a simple recipe as it requires a lot of different ingredients (including two types of alcohol!) and a number of steps to get those oh-so-perfect beans.
Given that my time is sadly finite, as is my cupboard, I decided to experiment with a simpler Instant Pot dried pinto bean recipe. While this approach wasn't quite that great (resulted in overcooked, bland beans), it's definitely a start to making a simpler pot of beans.
To begin this improvised approach, I soaked 1 cup of beans overnight and then cooked the beans with 1/2 white onion (left halved), 2 peeled garlic cloves, a few cilantro sprigs, and 2 bay leaves.
I supplemented the above with approx. 2 cups of water and omitted salt for the cooking because I had remembered reading that cooking beans with salt can make them too hard. However, on a recent Milk Street Radio podcast with Chris Kimball and Sara Moulton, I learned that this is an old wives tale! So in the future, I'll add the salt to the outset of cooking (if not also soaking the beans with salt as well).
I set the timer to 25 minutes on manual / high pressure and let the pot depressurize naturally.

Unfortunately, this is where the problems started. Pressure cookers do not need nearly the amount of water as standard stove-top cooking and I learned this lesson yet again the hard way. Way too much water in the pot, such that sauteing it down wasn't going to be sufficient. So I scooped out some of the extra water (which probably had a decent amount of flavor in it) and threw it down the sink.
I also learned that 25 minutes was WAY too long for pre-soaked pinto beans. I think I should half the time next time to not get horribly mushy beans.

The beans were also incredibly bland. So lots of salt next time, and maybe that many more herbs as well. Will report back as I continue to refine this "simple" pinto bean approach!