Preheat the oven to 200°C (400°F) and line a baking sheet with parchment paper.
Combine flour, baking powder, salt, and brown sugar in a large bowl.
Cut in the cold butter with a pastry cutter or fingers until the mixture resembles coarse crumbs.
Stir in chopped pecans.
In a separate bowl, whisk cream, maple syrup, egg, and vanilla until blended.
Pour wet mixture into dry ingredients, stirring gently just until combined.
Turn the dough onto a floured surface; shape it into a circle about 2.5 cm thick.
Cut into 8 wedges and place them on the prepared sheet, leaving space between pieces.
Brush tops with a little cream for shine.
Bake for 16–18 minutes, until golden brown at the edges and firm to touch.
Cool slightly, then drizzle with maple glaze if desired.