Lightly spray a 9x9 square baking dish. I like to line mine with parchment paper so I can easily lift the shortbread out for slicing, but this is optional.
Whisk the melted butter with the sugar and molasses in a large mixing bowl. Make sure to work out any lumps in the sugar.
Blend in the extracts, and then stir in the flour, cornstarch, and salt. Stir just until the dough starts to come together.
Fold in the nuts so they are evenly distributed and there is no dry flour left.
Crumble the dough evenly across the bottom of the prepared pan.
Pat the dough down with your hands, nudging it out so it fills the pan and is all even. You don't want a mound of dough in the middle, you want to flatten it out from side to side, evenly. I like to use an offset spatula to smooth the surface of the dough. If you like you can sink a few extra pecan halves into the top of the dough for a pretty look.
Bake for about 25 minutes. The top will still look pale, but the dough will be just beginning to turn golden around the edges.
Cool on a rack for about 15 minutes before cutting into squares.
Notes
To toast pecan halves, lay them out in a single layer on a baking sheet and toast for about 10-15 minutes at 350F. Give the pan a shake once or twice during cooking. Let the nuts cool before chopping.
Nutritional information is provided as a courtesy and is an estimate only. This information comes from online calculators. Although The View from Great Island attempts to provide accurate nutritional information, these figures are only estimates.
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