The best replacement for biscuit is cookie.

The best alternatives to biscuit are rated as following:
★★★★★  cookie
★★★  dowel
★★  scone
★★  roll
★★  cake
★  drop away
★  biscuit
★  almond color
★  bone
★  domino
★  english muffin
★  war admiral
★  drop away rest
★  bisque
★  spline
★  dumpling
★  alien blue
  triscuit
  fishcuit
  hostage
  mcmuffin
  fall away rest
  pocket hole
  bagel
  hostage rest
  bone color
  fall away
  croissant
  cracker
  ripcord arrow rest
  kreg
  muffin
  dog cookie
  drop away arrow rest

Your alternative for biscuit is not listed? Suggest!
Speaking about biscuit, one probably shouldn't forget about sausage gravy.

Other search terms related to biscuit and their ratings are:
★★★★★ sausage gravy
You have in mind a companion for biscuit and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of biscuit in all years. Click on graph for more.
biscuit
cookie
dowel