To correctly measure flour, first, sift the flour. Then using a spoon or scoop lightly scoop flour out of its container into a measuring cup. Continue filling the cup until it is overflowing, then using the back of a butter knife level the flour. Scooping the measuring cup directly into the flour to fill can result in up to 25% more flour than lightly spooning the flour into the measuring cup. More flour in a recipe will make it dense and dry.