Popsugar Lifestyle Caramelized Onions How to Caramelize Onions How to Caramelize Onions the Right Way 17 May, 2018 by Nicole Perry 0 Shares View On One Page Photo 2 of 8 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 2 Slice the Onions Cut each onion in half, and then slice into thin, half-moon slices. While it's not crucial that these are all exactly the same width, try to keep them somewhat even so that they will caramelize at the same rate. Previous Next Start Slideshow Caramelized OnionsOnionsFood How-ToCooking TipsCooking Basics