I use my indoor grill for this type of dish when outdoor grills are not convenient.
I use my indoor grill for this type of dish when outdoor grills are not convenient.
Cider vinegar drives the balance of this glaze, deploying acetic acid to cut through the heavy sweetness of ketchup and brown sugar while tenderizing the surface proteins of the meat. Lean cuts like pork tenderloin lack internal intramuscular fat, meaning they dry out rapidly when exposed to dry heat above 145 degrees Fahrenheit. Acid helps mitigate this vulnerability by denaturing surface muscle fibers just enough to retain moisture during a swift, 10-to-14-minute total cook time. Simmering the sauce components for 5 minutes prior to application drives off excess raw water content, concentrating the tomato solids and sugars so they adhere properly to the grill grates without instantly sliding off.
Flattening the pork tenderloin requires cutting it lengthwise without severing it entirely into two pieces, opening the cylindrical roast into a uniform sheet about one inch thick. This technique exposes maximum surface area to both radiant heat and the sticky glaze, ensuring the interior reaches a safe temperature of 145 degrees Fahrenheit before the exterior sugars char. Liquid smoke provides volatile guaiacol and phenol compounds that mimic charcoal smoke flavor when using an indoor electric or gas grill, replicating traditional pit-cooked aromas within minutes.