the fridge. It  may turn    cloudy  and solidify,   but don’t
worry—it’ll  return  to  normal  once    it  warms   up  to
room    temperature.
Cooking with Olive Oil
You often   hear    that    extra-virgin    olive   oil should  only
be   used    for     flavoring   and     finishing,  never   for
cooking.     And     this    is  true    to  a   degree—you  don’t
want    to  heat    extra-virgin    to  the point   where   it  starts
to   break   down    and     develop     bitter  flavors.    But
cooking at  relatively  low temperatures    with    it—say,
gently  sweating    onions  or  vegetables  for the base    of
a   sauce   or  soup—is totally fine,   and,    indeed, you can
taste    the     difference  in  the     finished    product.    That
said,   if  you want    to  save    a   bit of  cash,   finishing   a   dish
with     extra-virgin    oil     is  definitely  the     most    efficient
way to  go.
So ,    for  best    flavor,     cook    with    extra-virgin    in
gentle  situations  and finish  the dish    with    some    more
drizzled     on  at  the     end.   For best    value,   cook    with    a
more    neutral oil (such   as  canola, vegetable,  or  light
olive   oil),   saving  the extra-virgin    until   the very    end.
Never    heat    extra-virgin    to  shimmering  or  smoking
temperatures.
The Bitter Blend
The food    processor   may seem    like    the logical choice
for making  your    vinaigrettes    and mayonnaises more
