Simple Syrup for Moist Cakes
Simple syrup is a solution of equal parts sugar and water, heated just until the grains dissolve. Brushing this liquid onto cooled cake layers prevents them from drying out and provides a clean canvas for moisture that keeps the crumb tender for days.
The golden ratio is one-to-one.
Keep your heat low to avoid caramelizing the sugar; you want a clear liquid, not a butterscotch sauce.
- small saucepan
- whisk
- pastry brush
- glass jar for storage
What goes in.
- 1/2 cupgranulated white sugar
- 1/2 cupwater
Dissolve, don't boil
The syrup is ready the moment the liquid turns from cloudy to completely transparent. Remove it from the burner immediately to prevent concentration.
The method.
Combine the sugar and water
Pour both into the saucepan and set over medium-low heat.
Heat gently
Stir occasionally with a whisk until every crystal has vanished into the water.
Cool completely
Transfer to a jar and let it reach room temperature before applying to the cake.
Apply to the cake
Use a pastry brush to dab the liquid over the surface of your baked, cooled cake layers before stacking and frosting.
Other turns to take.
Citrus Infused
Add a strip of lemon or orange zest to the saucepan while heating, then discard it once the syrup cools.
Vanilla Bean
Split half a vanilla bean and scrape the seeds into the water and sugar before heating.
When it doesn't go to plan.
Apply the syrup while the cake is room temperature; if the cake is warm, the syrup may make it too soggy.
For sturdier cakes like pound cake, you can be generous with the brush; for delicate sponge, use a light hand.
Stored in a sealed jar in the refrigerator, this will keep for up to one month.
The ones that keep coming up.
Can I use brown sugar instead?
Yes, but it will change the flavor profile to something deeper and more molasses-heavy, and the syrup will be opaque rather than clear.
How do I know if I've used too much?
The cake should feel damp to the touch, not saturated or falling apart. Start with a light brushing and add more only if the crumb is very dry.
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