Step 1
Wash limes thoroughly
Step 2
Zest limes using a vegetable peeler, zester or cheese grater. Take care to minimize the pith, the bitter white layer under the zest.
Step 3
Cut limes in half and juice
Step 4
Add zest, lime juice, condensed milk, sugar and water to a blender, then blend thoroughly
Step 5
Strain through a fine mesh strainer into a bowl in order to remove any remaining bits of zest
Note: The limeade will become slightly bitter over time if the zest remains in the liquid
Step 6
Serve over ice in drinking glasses