Why this matters
A baked good sets after gases expand, proteins firm, starches gelatinize, and moisture moves through the batter or dough. Ingredient ratios and pan depth influence all of those events. That is why a casual extra scoop of flour or a much smaller pan can change more than flavor. Measure carefully, then use color, aroma, structure, and temperature as doneness clues.
How to do it
Move the bake to a rack and let it cool for the time stated before adding glaze, icing, or powdered sugar. Warmth melts finishes and can create a sticky surface.
What to look, hear, or feel for
The center should no longer radiate heat and the glaze should sit visibly on top instead of soaking away.
When something goes wrong
If glaze runs off, let the item cool fully and thicken the remaining glaze with a small measured amount of sugar. Do not pile on layers while the surface is hot.
Try it in a real meal
Practice on pancakes, muffins, quick breads, cookies, or one simple yeast dough before making several substitutions.