the Breville Test Kitchen

the Smart Oven™ Air Fryer Pro
3 hrs total time
20 mins active time
Easy
Makes Approx 30
Measurements:
chopped, at room temperature
lightly beaten, for brushing
Place the oats in a skillet or large heavy-based frying pan over medium heat. Cook, stirring often, for 8 minutes, or until lightly toasted and fragrant.
Transfer the oats to a large bowl, then remove and reserve ¼ cup. Add the flour and salt to the large bowl and stir to combine.
Place the butter and sugar in the bowl of a stand mixer. Using the paddle attachment, beat on medium speed for 3 minutes, or until light and creamy. Scraping down the bowl if necessary. Add the vanilla and beat. Add the oat mixture and beat to combine.
Turn the dough onto the countertop and shape into a disk. Divide into two portions. Shape each portion into a log (each about 5cm in diameter). Wrap in plastic wrap and refrigerate until firm, at least 2 hours or up to 5 days.
When ready to bake, insert the wire racks into positions 6 and 3. Set the oven to Cookies, No Fan, 175°C, for 14 minutes, confirm Rotate Remind and press Start to preheat.
Lightly spray 2 sheet pans with oil and line with parchment paper.
Trim the ends off the logs. Cut the logs into 6mm thick slices and place on the prepared sheet pans. Brush with egg and sprinkle with the reserved ¼ cup oats.
Once preheated, place in the oven and cook for 14 minutes, rotating and swapping the pans halfway through cooking.
The shortbread should be lightly golden around the edges. If not, cook them a little longer.
Remove from the oven and allow to cool completely on the pans.
Serve or store in an airtight container at room temperature for up to 1 week.