Bring broth and salt to a boil in a medium pan over high heat.
Slowly stir in the grits.
Reduce heat to a simmer and cook for 30 minutes, stirring often. To prevent the grits from splattering you can place a lid over the top of the pan but do not cover it completely.
Add the butter and stir to melt.
Add the cheese and Ranch dressing mix and stir until the cheese is melted.