In a medium bowl, whisk together sugar, prune puree, yogurt, oil and egg whites. In another medium bowl, stir together flour, cocoa, salt, baking soda and instant coffee. Using a wooden spoon, stir the dry ingredients into the web, mixing just until blended. Bake for 12 to 14 minutes, or until the tops spring back when touched lightly.
Transfer cookies to wire racks and cool.
Makes 24 large cookies. Contains 263 calories and 6 grams fat. All rights reserved. Do not duplicate or redistribute in any form. View our Privacy Policy .