In a large bowl, stir together the flour, granulated sugar, brown sugar, baking powder, cinnamon, allspice, baking soda, and salt.
In a medium-size bowl, combine the egg whites, shredded apple, apple juice, oil, lemon zest and lemon juice. Add to the flour mixture all at once and stir just until combined. Fold in prunes and pecans. Spoon into lightly greased jumbo muffin tin (6)
Bake for 35 to 45 minutes or until toothpick inserted in the center comes out clean.
Cool the muffins in the pan on a wire rack for 5 minutes.
Run a knife around muffins, carefully remove muffins from pan.