Make sure to prepare the cavities of your muffin tin with a heavy coat of soft butter or vegetable cooking spray .
Follow steps 1 through 3 in Forming Individual Tart Crusts, opposite.
After rolling, each piece of dough should be a little more than 12.5cm in diameter (the cavities in a standard muffin tin are about 5cm in diameter at the base and about 4cm deep).
Gently fold the piece of dough in half and slightly curve the folded edge upward on each side. Open out the piece of dough and let the centre of the disk fall into the bottom centre of the cavity in the tin .
Use your fingertips to press it in place against the bottom and sides of the cavity, then use the point of a paring knife to trim the edge of the dough even with the top of the cavity .