Stir in the paprika and saffron.

Set aside to let cool completely, about 45 minutes.Process cola mixture, mayonnaise, sherry vinegar, brown sugar, and salt in a blender until smooth, about 15 seconds.

Transfer to a small bowl; cover and chill until ready to use, up to 3 days.. Make the pimentón cheese.Cover and chill.. Make the burgers.Arrange jamón serrano in a single layer on a microwavable plate lined with paper towels.

Cover with a paper towel.Microwave on HIGH until slightly crisp, 1 to 2 minutes.

(Ham will crisp as it cools.).

Preheat grill to high (450°F to 500°F).Yukon Gold potato.

, peeled and sliced 1/3 inch thick.watercress, coarsely chopped.

European cucumber.Add the leek and cook over moderate heat, stirring, until softened, 3 minutes.