Preheat oven to 375º Fahrenheit. Line a baking pan with parchment paper.
Add butter to food processor and pulse a few times to cut into the dry ingredients. Mixture should appear mealy.
Add egg, vanilla extract and maple flavoring to the food processor. Pulse until mixture forms a thick dough. Add nuts and pulse one or two more times to chop and incorporate nuts.
Turn out onto the prepared baking sheet and form into a disk about 3/4 inch thick and 8-9 inches in diameter.
Using a butter knife, cut the dough into eight equal pieces. Gently press a whole pecan on the top of each scone. Gently separate scones so there is two inches between the scones.
Bake scones in the preheated oven for 14-16 minutes or until golden brown and top springs back when lightly touched.
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