This Halacha is an excerpt from our Sefer
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Owning and benefiting from Kitniyos?
It is permitted to own Kitniyos and benefit from it on Pesach even if it is cooked, [and there is no custom to forbid doing so even according to Ashkenazi Jewry]. Thus, one may light candles using Kitniyos based oils.
 Admur 453:5; Rama 453:1; Terumos Hadeshen 113