Brown sugar substitute: light, dark, and homemade options

Light and dark brown sugar can replace one another in the recipe’s stated amount, according to King Arthur’s replacement guide. Expect a difference in color and molasses flavor. If you have neither shade, use the separate sugar-and-molasses method below.

A named sugar-and-molasses option

King Arthur’s replacement guide gives these quantities for each cup of brown sugar requested:

Scroll the table sideways if needed.

King Arthur adds the measured sugar and molasses to the recipe at the same stage; its method does not require premixing a stored jar of homemade brown sugar. These are that publisher’s proportions; other formulas may differ.

Scale the ingredients together

For half of the source’s light-brown-sugar replacement, the calculation is 99 g sugar plus 7 g molasses. Halve both components, not only the sugar. The combined mass is 106 g; it is a replacement formula rather than a claim that every packed half-cup must weigh exactly that amount.

For 1½ times the same replacement, scale both rows to 297 g sugar and 21 g molasses. The recipe scaler can multiply the two gram amounts after you choose the replacement. Do not substitute a packed-brown-sugar conversion weight for the plain white sugar in this formula.

If you only have white sugar

Plain white sugar omits the molasses. King Arthur’s sugar guide explains that molasses affects moisture, acidity, flavor, and color. A cookie’s texture can therefore change even when the sweetness seems acceptable.

Look for a replacement note in the actual recipe. Do not invent an across-the-board extra-water correction to compensate for missing molasses.

Keep measuring and replacing separate

Use the sugar conversion guide when you have the correct sugar and only need a weight. Use this page when the ingredient itself is missing. Neither page turns powdered sugar, syrup, or a sweetener blend into an interchangeable brown-sugar substitute.

Before mixing, record whether you used light, dark, or a named homemade mixture. That note helps explain a change in the next batch without assuming the bake failed.

If your sugar is hard rather than missing

Use the softening and storage guide before measuring. Moisture loss and a pantry shortage are different problems; hard chunks do not fill a packed measuring cup consistently.