Using a large chef’s knife, slice straight down on each side to form 4 straight pieces of the pepper. This keeps the seeds and ribs intact in the center.
Slice off the bottom and top of the pepper, and pull out the stem.
Place the skin side of the pepper down, and cut it into thin slices. (If you’re planning to dice the pepper, make larger slices.)
If you’re dicing the pepper, turn the slices and cut them crosswise to make square pieces.