Simmer on medium, I use an electric glass topped range, just enough were the bubbles pop every few seconds, VERY IMPORTANT not to boil, ruin the sauce man! Prep Time: 10 minutes Cook Time: 30 minutes Total Time: 40 minutes Yield: Makes about 2 1/4 cups Mix all except soy, butter and smoke. Simmer 20 minutes. Stir in remaining ingredients and simmer for 10 more minutes for a total of 30 minutes.