- Preheat oven to 375 degrees F. Let piecrusts stand according to package directions. In a medium bowl, combine apples, toffee pieces, brown sugar, melted butter, and salt. Set aside.
- On a lightly floured surface, unroll one piecrust at a time. Using a round 3-inch cookie cutter, cut out dough. Reroll scraps once to cut enough additional rounds to make 24 total. Press dough rounds into 24 ungreased 1-3/4-inch muffin cups. Spoon about 1 tablespoon of the apple mixture into each cup.
- Bake in the preheated oven about 18 minutes or until crust is golden brown and filling is bubbly. Remove from muffin cups and cool completely on a wire rack. If desired, sprinkle cookies with powdered sugar. Makes 24 tartlets.
From the Test Kitchen
Layer cookies between waxed paper in an airtight container; cover. Store in the refrigerator for up to 3 days or freeze for up to 3 months.