Step 1

Place the sugar and the starch in the blender or coffee grinder.

Step 2

Cover the container and process on the highest setting until powdery. It will take about 30 seconds in a high speed blender (about 2 minutes in a standard blender).

Step 3

Transfer to an airtight container.

Step 4

Place 1/4 cup of sugar in the grinder; add all of the tapioca starch.

Step 5

Cover and process, shaking the grinder to distribute the ingredients, until powdery (it will take about 2 minutes, max).

Step 6

Transfer to an airtight container and repeat with the remaining sugar. Stir to combine all of ground sugar once finished.