For steel-cut whole groats, the tough whole seeds cut in half width-ways? Mine would be crunchy and whole after just 3 mins. Even after 15 mins pressure they were a bit firm. Rolled I cook in 5 mins.
I'm using an instant pot. Maybe it develops more pressure? But 3 minutes high, rest for 10 minutes, vent, is just a bit on the al dente side. Cooked through, but slightly chewy.
Sometimes I sauté the dry oats in a pat of butter for a few minutes before adding the water and cooking. It gives them a nice nutty flavor.
