Using Coconut Sugar Instead of Brown Sugar (packed)
Ratio
1:1
Good — works well with minor differences
Measurement Variance Note
For 1 cup references, this ingredient can vary by about 8% across brands and measuring methods (184g-216g per cup). For the most reliable substitution result, measure by weight and test a half batch first.
What changes when you swap brown sugar (packed) for coconut sugar
Brown sugar's molasses carries the acidity that wakes up baking soda — strip it out for coconut sugar and that reaction stalls, leaving cookies that spread less and lift less. You also lose the hygroscopic pull of molasses, so doughs hydrate slower and bake drier at the edges. A chocolate chip cookie made this way reads sandy and short rather than chewy and craggy.
- Cookies spread less and stay domed — coconut sugar lacks the molasses acid that activates baking soda, so the lift-and-collapse that flattens a cookie never fully fires.
- Crumb dries out faster on day two. Molasses holds onto water through baking and storage; without it, banana bread and oatmeal cookies go stale within 24 hours instead of three days.
- Edges brown harder and faster. Coconut sugar caramelises at a lower threshold than sucrose-plus-molasses, so pull bakes 2-3 minutes early or the rim turns bitter before the centre sets.