Gently stretch the dough out on an oiled work surface to 12 in x 24 in.
Evenly spread a generous amount of the softened butter over the dough surface, and scatter over the filling mixture and nuts.
Slice the rectangle into 12 equal pieces, rolling up each individually.
Take some of the remaining softened butter and butter a non-stick, oven-safe, 11-inch, frying pan.
Pour the gooey layer on the bottom and sprinkle some pecan halves on the bottom of the pan.
Sit the rolls in the pan, swirl side up, cover with a clean damp tea towel and leave in a warm place until doubled in size again.
Preheat the oven to 350°F.
Bake for 30-45 minutes or until golden brown on the top.
Turn over onto a plate and serve.