My "go-to" easy sauce is:
1 part Sweet Baby Ray's Original BBQ sauce
1/2 part apple juice
1/4 part cider vinegar
1/4 part molasses
Bring to a simmer and taste, adjust vinegar and molasses as desired, then let hit barely simmer till it reduces down and thickens a bit. It is a thin tangy sauce that still gets a lot of depth to the flavor from the molasses. It is awesome on pork and chicken, but I for beef I use a lot less molasses and add in some Worcestershire - I prefer a savory flavor with beef over a sweeter flavor.
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