Personally, I like thick oatmeal, the kind that reminds me of the stuff my great grandma used to make at her house. (thesimpledollar.com)
Optional step for thicker oatmeal: Pour oatmeal mixture into a microwave safe bowl, and microwave for 30 seconds to 1 minute at 50 % power. (cupcakesandkalechips.com)
Cook until the oats are very tender and the oatmeal is as creamy as you like it — longer cooking will make thicker oatmeal. (thekitchn.com)