STEP 1/5
Peel the grapefruit and prepare only the filling.
STEP 2/5
Disinfect the sauce bottle thoroughly, prepare it, and add grapefruit. Press it half full.
STEP 3/5
Prepare the Costco unrefined sugar. When making grapefruit syrup, the color is pretty when you make it with white sugar, but I chose this for taste rather than color. It doesn't matter if it're using white sugar.
STEP 4/5
Put a lot of sugar on top of it and pray for grapefruit syrup.
STEP 5/5
After one night, the sugar is melting. A few more days, right?
If you eat grapefruit with bad gums, you might get cold, so it's better to brush your teeth right after you eat it