Popsugar Living Cooking Basics How to Slice Fennel How to Slice Fennel, No Mandoline Needed January 4, 2015 by Nicole Perry View On One Page Photo 1 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Clean the Bulb Give the fennel bulb a good rinse. Previous Next Start Slideshow Cooking BasicsFennelVegetablesCooking How-To