Grits tighten as they sit, so keeping extra hot water nearby is normal and smart.
If your grits taste “missing something,” try salt first before adding anything else.
Lemon gives the cleanest cheesy-style tang. If you swap apple cider vinegar, start with 1/2 teaspoon and taste before adding more.
If your seasoning blend is already spicy, go lighter on red pepper flakes and adjust at the end.