Melt 2 tablespoons butter in a medium bowl over medium heat. Add apples, cinnamon, sugar, and 1 tablespoon water. Cook over medium heat until apples are slightly softened, about 4 minutes.
In a small bowl, mix remaining 3 teaspoons water with cornstarch until dissolved. Add to pan and stir, continuing to cook over medium heat. Cook until apples have softened and filling is thickened. Cool at room temperature.
Butter two 12-cup muffin tins and set aside. Remove dough from the refrigerator to a floured surface. Divide into 6 portions.
Roll one portion into a thin rectangle. Spread about 1 teaspoon butter onto the rectangle.
Divide apple pie filling into 6 portions. Add one portion along the long side of the rectangle. Roll the dough over the apple pie filling and continue to roll into a log. Repeat with 5 remaining portions of dough.
Take one log and cut it in half. Cut each part of the log in half lengthways, giving you 4 sections of dough. Repeat with remaining portions of dough. You will have 24 pieces.
Roll each section of dough, layered side out, into a tight cinnamon roll shape. Place in prepared muffin tin. Continue with remaining 23 pieces.
Cover muffin tins and let sit so dough can puff up slightly, about 30 minutes. Preheat oven to 350°F (180°C). Bake for 25-30 minutes or until cruffins are lightly browned.