
If the gravy for the beef stew is too thick, add a bit more water. Add a quarter cup at a time until it reaches desired thickness. Place a wooden spoon in the pot and place in stew. Remove from pot and draw your finger along the spoon so that it creates a path through the gravy. If the path fills in, the mixture isn't thick enough. If it feels like paste, it is too thick. If it stays put, it's ready.
Original Recipe credit to Kristine Lewis.