A quick and easy twist on a Canadian classic
In a large bowl, combine flour, butter and powdered sugar until crumbly. When squeezed in your hands, the dough should hold together. Transfer to the lined baking pan, and press the dough into the pan evenly.
Combine eggs, brown sugar, melted butter, baking powder, salt and vanilla in a large bowl (use the same bowl as the crust - it saves dishes!). Whisk until combined.
Pour over crust, and sprinkle with pecans or raisins, if using, and bake for another 20-25 minutes, or until the filling has set and the top has browned.