Preheat the oven to 350 ºF or 175 ºC. Line a baking sheet with baking paper and put to one side for now.
In a large bowl, or stand mixer cream together your butter and the sugars until smooth.
Crack the eggs in a separate jug and add into the mix, along with the vanilla extract. Mix until well combined.
Add your flour, baking powder and salt and mix until combined.
Add the maple syrup and chopped pecans to the mix and combine thoroughly.
Using an ice cream scoop or melon baller (or even just spoons if you don't have these to hand), scoop the cookie dough onto a baking sheet about 2 inches apart. They will spread when baking.
Bake for 12 minutes for super chewy cookies.
Leave to cool for 5 minutes then transfer to a wire rack.