Which is correct “deeper my passion/interest” or “strengthen my passion/interest”?

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I’d like to say “ It was consolidated?/deeper? my interest [on cooking( I originally have this interest)] after I tasted the very palatable cuisine which made by my grandma.

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Maybe I didn’t describe the question clearly. I’d like to say this phrase by “comparative”.

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DeepeN, strengthen, grow, and develop are all options.

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Hi Alice, I would say “grow or develop passion for smth” and “maintain/keep interest”

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Both can be correct however the first one should be deepen my passion/interest but I think the first one sounds better

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