Synonyms for «little orange zest»

Synonyms for individual words can be found below.

I'm thinking Castagnaccio would also be good with a little orange zest too... (coconutandberries.com)
The cake is made with a heavy share of butternut squash puree spiced with cinnamon and a little orange zest. (pastryaffair.com)
I added a titch more butter to the glaze and added a little orange zest for color. (myrecipereviews.com)
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