Peel the cucumbers and tomatillos, and roughly chop.
Grill the jalapeños until blistered and slightly blackened.
Add the cucumbers, tomatillos, jalapeños, lime juice, black pepper and hot sauce into a blender, and blend until smooth.
Strain into a large container.
Rim 6 Highball glasses with salt and fill with ice.
Fill each glass with 5 oz of the mixture, and serve each with a beer.