Piña Pisco Sours

Directions

1. 1.

   Purée pineapple in a blender until very smooth. Force through a fine-mesh sieve into a bowl, pressing hard on and then discarding solids. (You should have about 1 3/4 cups juice.)

2. 2.

   Return pineapple juice to blender and add remaining ingredients, except bitters, then pulse until smooth and foamy.

3. 3.

   Pour over ice in glasses. Add a drop of bitters to center of each drink.