Time 10 minutes

Serving 6

• 4 limes, scrubbed and washed, plus wedges or wheels for serving
• ⅓ cup granulated sugar
• Half of a 14-ounce can sweetened condensed milk
• 4 cups cold water
• 4 cups ice, plus more for serving

Step 1
Cut off and discard the tips of the limes, then cut the limes in quarters.

Step 2
Working in batches if your blender is smaller, pulse limes, sugar, sweetened condensed milk, water and ice in a blender 5 to 8 times until the ingredients are just combined. You’re looking to extract flavor from the limes, but not to pulverize them, which can make the drink too bitter. Pieces of lime rind may still be visible.

Step 3
Strain the mixture through a fine-mesh strainer into a large pitcher or bowl with a spout. Use the back of a spoon to push out as much liquid as possible; discard the solids.

Step 4
Divide among tall, ice-filled glasses, garnish with lime wedges and serve immediately.