Sliced Red Onions
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A simple guide to slicing a large quantity of red onions, perfect for meal prep or recipes requiring a lot of onions.
CookOS may earn a commission from Instacart orders.
A simple guide to slicing a large quantity of red onions, perfect for meal prep or recipes requiring a lot of onions.


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Peel the red onions and cut them in half.
Place an onion half cut-side down on a cutting board.
Using a sharp cleaver or chef's knife, thinly slice the onion from one end to the other.
Repeat with the remaining onions until all are sliced.