1Put the butter, superfine sugar, brown sugar and vanilla in the bowl of a stand mixer with the paddle attachment. Mix on medium speed for 2 minutes until pale and creamy.
2Add the egg and beat until just combined.
3Sift the flour, baking powder and salt into a medium bowl.
4Add the flour mixture to the butter mixture and mix on low speed, until just combined.
5Add the chocolate chips, pecans and oats and mix on low speed until just combined.
6Insert the wire rack into the bottom shelf position. Preheat the oven. Select BAKE/325°F/SUPER CONVECTION/12 minutes and press start.
7Line the pizza pan with parchment paper. Roll heaped tablespoons of the cookie dough into balls. Place eight balls evenly spaced on the tray, not too close to the edge.
8Once preheated, put the cookies in the oven and bake for 12 minutes until the cookies are light golden brown.
9Remove the cookies from the oven and cool on the tray for 5 minutes. Then transfer to a wire rack to cool completely.
10Repeat the process with the remaining dough to make 24 cookies.
11When the cookies have completely cooled, store in an airtight container for 5-7 days.