Simmer, stirring constantly, until the mixture begins to simmer. In a separate cup, mix together 3-4 tablespoons of corn starch with water until corn starch is well blended. SLOWLY stir this slurry into your gravy, stirring constantly, until the desired thickness is reached.
Step 3: Remove from heat and stir in: 2 tbls Butter 1 tsp Liquid Smoke
Taste and adjust seasonings and possibly thickness. Serve over piping hot homemade biscuits!