Flan and fudge.

Flan: Curiosity
Fudge:Gratitude

Might be a little hesitant, but he does accept the desserts, despite his misgivings about what’s happened in the past. Overall, the detective was good about things involving criminals… And maybe he should feel flattered that the other had so much faith in his abilities that he needed to resort to more questionable actions… Yeah… or not so much, but he’s willing to have a bit of trust outside of heists and any unexpected requests.

“Thank you, tantei-kun.”