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Can I make kale pesto ahead of time or will it change color?

I'm making a pasta with kale pesto (kale, olive oil, pine nuts, garlic, pecorino), but I want to make the pesto a day ahead. Will it turn brown like basil pesto?

asked by Brooklyn Salt 12 months ago
3 answers 891 views

HalfPint is a trusted home cook.

added 12 months ago

If you cover the pesto with some oil, it should seal off the pesto and keep it from browning.

I also learned from Alton Brown that quickly blanching basil will keep the bright green color and pesto would not turn brown. Might work with kale too.

added 12 months ago

In my experience, kale doesn't oxidize nearly as quickly as basil--which oxidizes almost instantly without exposure to heat (blanching) or acid (lemon juice.) Yes, you can safely make kale pesto a day ahead without it turning brown. I'd probably add a little lemon juice anyway, but if you cover it well it'll be fine.

added 12 months ago

Pestos made from alternative greens (i.e. Other than basil) tend to stay green much longer. It should be fine for several days.