Use a mandolin to get a consistent cut for the apples. This will make rolling up in the pastry so much easier!
To prepare pastry, unroll dough and use a pizza cutter to cut each rectangle into three equal strips. Brush each pastry strip with egg wash and sprinkly with cinnamon and sugar.
In a microwavable bowl, fill halfway with water and add lemon juice. Thinly slice apples in approx. 1/4 slices and place in water. Microwave apples one minute at a time until pliable.
Shingle stack apple slices (skin up) across the top half of pastry strip and fold strip over apples. Starting at one side, roll pastry and secure at the other end making a rosette.
Place in a greased muffin pan and bake at 375F for 40 minutes or until done. Remove from pan and cool on a rack.