This is the 14632nd most frequent Korean word.
미숫가루에
"미숫가루에" translates to "in misutgaru," referring to a traditional Korean grain powder mixture usually made of roasted rice, barley, and other grains.
In this sentence, '미숫가루에' indicates the multigrain powder as the receiving element to mix water into.
미숫가루에 물을 넣고 잘 저어서 마셔보세요.
Mix water into the multigrain powder and stir it well before drinking.
Here, '미숫가루에' specifies the target of the addition of sugar.
나는 미숫가루에 설탕을 조금 추가했어요.
I added a little sugar to the multigrain powder.
In this context, '미숫가루에' conveys the idea of adding an ingredient, ice, to the multigrain powder to adjust its temperature and sensation.