Homemade Brown Sugar Recipe
Brown sugar is just granulated sugar coated in molasses, so making your own lets you control the color and moisture level, and storing the finished batch in a truly airtight container (not the torn bag it came in) is what keeps it scoopable instead of turning into a brick.
- Prep
- 5 min
- Cook
- 0 min
- Total
- 5 min
- Servings
- 16
Ingredients
- 1 cup granulated sugar
- 1 tablespoon unsulfured molasses
Nutrition per serving
- Calories
- 52
- Protein
- 0g
- Carbs
- 13g
- Fat
- 0g
Based on the recipe as written, one serving. Recalculates if you swap an ingredient above. An estimate only, exact values depend on the specific ingredients used.
Need different units or a different yield? Try our Conversion Calculator →
Instructions
- 1Add the granulated sugar and molasses to a mixing bowl or the bowl of a food processor.
- 2If mixing by hand, use a fork or the back of a spoon to work the molasses into the sugar until no dry, pale streaks remain. If using a food processor, pulse in 5-second bursts until evenly colored, about 6-8 pulses.
- 3Break up any remaining clumps with your fingers, the sugar should feel like damp sand, not gritty.
- 4Transfer immediately to an airtight container, pressing it down firmly with the back of a spoon to remove air pockets.
- 5Seal the container completely and store at room temperature away from direct heat.
Tips & variations
- Use 1 tablespoon of molasses per cup of sugar for light brown sugar, or 2 tablespoons for dark brown sugar.
- Blackstrap molasses works in a pinch but has a stronger, more bitter edge than regular unsulfured molasses.
- Double or triple the batch and store extra in a second airtight container so you're not breaking the seal on your main supply as often.
Storage & reheating
Brown sugar hardens because it loses moisture to the air, so the container matters more than almost any other factor. Use a container with a true gasket seal, a glass jar with a rubber-lined lid, a silicone-sealed storage box, or a zip-top freezer bag with the air pressed out and folded over twice, rather than a clip-top bag or a container with a snap lid that doesn't fully seat. Stored this way at room temperature, homemade or store-bought brown sugar stays soft for at least 6 months. If it does harden, a slice of bread or a damp paper towel sealed in the container for 8-12 hours will soften it back up, or a terra cotta brown sugar disc left in the container long-term prevents it from happening at all.
Tips from the Tulo kitchen
- A wide-mouth pint canning jar with a two-piece lid works better than most dedicated sugar containers, since the rubber-flanged lid seals more tightly than snap-on plastic.
- Keep the container away from the stove or oven vent; ambient heat speeds up the moisture loss that causes clumping even in a sealed jar.
- Label the jar with the date it was made or opened, since it's easy to lose track of how long a container has been in rotation.
FAQ
What's the best airtight container for brown sugar?
A glass jar with a rubber-gasketed lid (like a canning jar with a two-piece lid, or a jar with a hinged rubber seal) outperforms most plastic snap-lid containers, which rarely seal as tightly and let moisture escape over weeks.
Does an airtight container alone keep brown sugar soft forever?
It slows the process significantly but the sugar can still dry out slowly over many months. Adding a terra cotta brown sugar saver disc or a small piece of apple or bread inside the sealed container adds back moisture and keeps it soft much longer.
Can I store brown sugar in the bag it came in?
The original bag isn't airtight once opened; even folded over and clipped, it lets in enough air to harden the sugar within a few weeks. Transfer it to a sealed jar or container as soon as the bag is opened.
How do I fix brown sugar that already hardened in storage?
Seal it in an airtight container with a damp paper towel or a slice of bread for 8-12 hours, then remove the towel or bread once it's softened. Microwaving with a damp paper towel over the bowl in 20-second bursts works faster if you need it immediately.