How Long Does Unopened Pasta Sauce Last? Despite what you may have been told, that unopened jar of pasta sauce does, in fact, have a shelf-life, albeit a long one. Store unopened pasta sauce at room ...

Cook, stirring occasionally, until caramel is thick, syrupy, deep amber in color, and reduced to about 3/4 cup and apples are fork-tender, about 1 hour. Remove caramel from heat; turn off burner.