How to Cube Potatoes

by Zora Hughes

Cubed potatoes are called for in a variety of dishes, from breakfast potatoes to potato salad. Because of their irregular round shape, cutting potatoes into cubes can be a bit difficult. You'll need to slice off all of the potato's rounded edges to create a rectangular shape needed for equal-sized cubes. A good quality chef's knife makes it easier to slice the potatoes evenly, although it can take a little time to master.

Peel the potatoes with a potato peeler or paring knife. Place the peeled potatoes in a large bowl filled with cold water. This will help keep them from browning before you are ready to use them.

Place a potato on a clean cutting board. Cut off the rounded edges on all sides of the potato to create a rectangular block.

Cut the potato lengthwise into evenly-spaced slices. Stack the slices on top of each other and slice them lengthwise again, using your non-dominant hand to hold the stack steady.

Turn the potato slices 90 degrees, again using your non-dominant hand to hold the stack steady. Cut across the potato slices at even intervals to create equal-sized potato cubes. Repeat with the rest of your potatoes.

Items you will need
  • Large bowl
  • Sharp chef's knife
  • Cutting board


  • If you prefer not to waste the potato edges and don't need equal-sized cubes, slice each potato in half lengthwise, creating a sturdy flat base to work with, then slice each half as above. The cubes won't be uniform in size, but you will be able to use the entire potato.
  • A knife with indentations along the blade, such as a santoku knife, works particularly well for dicing potatoes. The indentations create space between the vegetable and the blade, keeping the potatoes from sticking to the knife as you dice.

About the Author

Based in Los Angeles, Zora Hughes has been writing travel, parenting, cooking and relationship articles since 2010. Her work includes writing city profiles for Groupon. She also writes screenplays and won the S. Randolph Playwriting Award in 2004. She holds a Bachelor of Arts in television writing/producing and a Master of Arts Management in entertainment media management, both from Columbia College.

Photo Credits

  • Martin Poole/Photodisc/Getty Images