Should Brown Sugar Be Packed When Measured?

Brown sugar differs from white granulated sugar in more than just its color; some molasses remains in it, and that molasses carries moisture. The moisture makes the granules stick together. So brown sugar sits in the jar not as a free-flowing powder but as a lightly clumped mass. When spooned loosely into a measuring cup, the clumps rest against one another with large gaps in between; the cup looks full, but it contains noticeably less sugar than expected. That is why brown sugar cannot be measured the same way as white sugar.

Packing is meant to close these gaps. As you put brown sugar into the cup, press it down with the back of a spoon or your fingers; pack it after each addition and fill the cup to the rim this way. When done correctly, the sugar comes out in one piece in the shape of the cup when you turn it upside down, without crumbling. This is a practical sign that it was measured correctly. If it crumbles, it was not packed enough, and that measure contains less sugar than the recipe expects. Pressing with the same force each time gives the same result each time.

There is a reason recipes do not spell out this method. In recipes from outside Turkey, brown sugar is almost always measured packed, and the practice is so established that recipes often do not need to say so. This assumption is not always carried over when recipes are translated into Turkish. As a result, a recipe may assume a packed cup while the reader measures a loose cup; the difference is noticeable in doughs that are sensitive to sugar ratios, such as cookies and cakes. Turkish recipes do not always make the same assumption, and unless the recipe says so, the ambiguity remains.

The difference affects texture as well as quantity. The moisture in brown sugar adds water to the dough and helps cookies stay soft and cakes stay moist. Too little brown sugar reduces both sweetness and moisture, so cookies come out drier and crisper than expected. If too much is added by packing it too firmly, the opposite happens and the dough spreads. Packing is therefore not a matter of preference; it is the method the recipe assumes. The same moisture also makes the dough brown faster.

The surest solution is to stop measuring by the cup altogether. Weighing brown sugar eliminates the debate about packing because the weight is not affected by gaps. If a recipe gives the amount in 200 ml measures and you have a scale, weigh the cup after packing it 1 time, write the number next to the recipe, and use that gram amount next time. If the sugar has clumped and hardened, soften it in the jar first, since rock-hard sugar cannot yield 1 consistent measure, whether packed or loose. To soften it, put a slice of apple in the jar, close the lid, and let it sit for a few hours.