Place the water and whiskey in bottom of Instant Pot and remove the membrane from ribs, if desired. Place the ribs in the pot by curling them around or cut into three segments and place in bottom of pot. Cook on high manual setting for a 25-30 minutes, allow for natural release of pressure at the end. Preheat oven to 350° F.
Place the ribs on a foil-lined baking sheet, using a pair of tongues and reserve ½ cup of liquid in bottom of the pot. Discard the remaining liquid.
Turn the Instant Pot on suaté (high) and combine all ingredients for the sauce. Stir to reduce and add a little flour if necessary to achieve desired consistency.
Slather the ribs in sauce and place in the hot oven for 10 minutes. Then, serve immediately or cover with foil and reduce oven to warm until ready to serve.