We tried milkshakes from McDonald's, Chick-fil-A, Burger King, Dairy Queen, and Wendy's -- and the winner was clear

Sarah Schmalbruch / INSIDER A vanilla milkshake may seem like a rather mundane dessert option, but find one with a creamy, authentic vanilla flavor and it'llsatisfy even the sweetest of sweet tooths. We tested the treat at five different fast food chains to see which one is best. The versions we sampled were from: McDonald's Chick-fil-A Burger King Dairy Queen Wendy's Keep scrolling to read our thoughts and to see the final ranking. McDonald's McCafé VanillaShake Sarah Schmalbruch / INSIDER Our...