Whataburger teasing saucy surprise, internet left guessing the flavor

HARLINGEN, Texas (ValleyCentral) - The Texas burger giant has been dropping hints of what appears to be a new dipping sauce.The mystery is real on Whataburger's Twitter feed. The burger chain has been leaving followers with more questions than answers with two posts that hint at a new flavor of dipping sauce.
What could the flavor be?Your guess is as good as ours, but according to their caption, "it's almost here."The suspense is really heating up…it won’t be long now pic.twitter.co