Heat oven to 400°F (375°F for dark or nonstick cookie sheet). In small bowl, mix 3 tablespoons flour, the granulated sugar and 2 tablespoons nuts. Cut in 2 tablespoons butter, using pastry blender or fork, until crumbly; set aside.
In large bowl, mix 2 cups flour, the brown sugar, baking powder and salt. Cut in 1/2 cup butter, using pastry blender (or pulling 2 table knives through ingredients in opposite directions), until mixture looks like fine crumbs. Stir in 1/2 cup nuts. Stir in maple syrup, egg and just enough of the 2 tablespoons milk so dough leaves side of bowl and starts to form a ball.
Place dough on lightly floured surface; gently roll in flour to coat. Knead lightly 10 times. Pat or roll into 8-inch circle on ungreased cookie sheet. Brush with additional milk. Sprinkle with topping. Cut into 8 wedges, but do not separate.
Bake 15 to 18 minutes or until golden brown. Immediately remove from cookie sheet; carefully separate wedges. Serve warm.