This is the 13867th most frequent Korean word.
만들었는데
"Made" or "created" (past tense, with a conjunctive nuance: "but," "so," or "and").
In this sentence, '만들었는데' is used to describe the past action of making the cake, with '었는데' indicating a transition or background from that action to the speaker's opinion about the taste.
제가 직접 이 케이크를 만들었는데 맛이 좋은 것 같아요.
I personally made this cake, and I think it tastes good.
Here, '만들었는데' indicates that the problem was made in the past, leading into the statement about the difficulty of solving it, showing cause-effect or context-setting.
그들은 큰 문제를 만들었는데 해결하기가 정말 어려웠습니다.
They created a big problem, and it was really difficult to solve.
In this case, '만들었는데' refers to the collaborative creation of a project, and transitions to the speaker's anticipation of favorable outcomes due to that creation.