Equipment
Ingredients
Fruit Preparation
- 500 g fresh kumquats, washed and dried thoroughly
Syrup
- 400 ml water
- 300 g granulated sugar
- 100 g light corn syrup
- 1 star anise
Nutrition (per serving)
Method
Using a sharp paring knife, gently score a small cross or X into the blossom end of each kumquat. This allows the hot syrup to penetrate the fruit and prevents them from bursting as they cook.
Bring a medium saucepan of plain water to a boil at 100°C/212°F. Drop the scored kumquats into the boiling water and blanch for exactly 3 minutes to remove the harsh astringency from the skins.
Use a slotted spoon to carefully transfer the blanched kumquats to a bowl of ice water. Let them cool completely, then drain well.
In the emptied saucepan, combine the 400ml water, granulated sugar, light corn syrup, and the optional star anise. Bring the mixture to a boil over medium-high heat, stirring gently just until the sugar dissolves completely.
Reduce the heat to low to maintain a very gentle simmer at around 90°C/195°F. Carefully slide the blanched kumquats into the syrup. Simmer gently without stirring for 30 to 40 minutes, until the fruit becomes slightly translucent and shiny.
Remove the saucepan from the heat. Allow the kumquats to sit undisturbed in the warm syrup at room temperature for at least 24 hours. This resting period is critical for the fruit to absorb the sugar slowly and plump up.
Use a slotted spoon to gently transfer the plumped kumquats into a sterilized glass jar. Pour the remaining syrup over the fruit until they are completely submerged, discarding the star anise if used. Seal tightly.
Chef's Notes
- Light corn syrup is technically an invert sugar. It acts as an interfering agent to prevent the sucrose molecules from locking together, ensuring your final syrup remains impeccably smooth and brilliantly clear, even after months in the refrigerator.
- Do not skip the initial blanching step. This crucial process removes the harsh, bitter oils found in the kumquat skin and softens the fruit sufficiently so it can absorb the heavy syrup without shrinking into a tough raisin.
- The leftover kumquat-infused syrup is culinary gold. When the fruit is gone, use the liquid to sweeten winter festive cocktails, drizzle it over Greek yogurt, or brush it onto freshly baked pound cakes as a flavorful soaking syrup.
- If you prefer a completely seedless experience, you can gently squeeze the blanched kumquats to push the seeds out through the scored bottoms before adding them to the sugar syrup, though leaving them whole provides a more attractive finished shape.
Storage
Refrigerator: 3 months — Keep fruit completely submerged in the syrup in a sterilized, airtight glass jar.
