Preheat your oven to 190C/170C Fan and line a 9x9inch Square Tin with parchment paper, and leave to the side for now.
Whisk/Mix the Plain Flour, Bicarbonate, Salt and Cornflour together so its evenly distributed – leave to the side.
In a larger bowl, melt the butter. Add in the two sugars, and whisk for about 2 minutes so the sugar starts to dissolve and the mixture is smooth. Add in the Egg and the Vanilla, and whisk again briefly till smooth. (I used an electric whisk)
Add in the Dry Ingredients and chopped up Cadburys Oreo Bar and mix with a spatula till a thick cookie dough is formed.
Press the mixture into the bottom of the tin and press in the chopped Oreos onto of the traybake. Bake the traybake in the oven for 20-25 minutes, until the top of the cookie bake looks ‘dry’!
Leave the cookie bake to cool for about 10 minutes, then leave to cool fully on a wire rack. Cut the bake into 4×4 for decent sizes, or 5×5 for smaller ones! Enjoy!
Because this traybake is essentially dryer compared to the Rolo Cookie Bars they will take less time in the oven. Also, the might look slightly underdone, but go by your instinct.
I baked mine for 25 minutes, and they still looked slightly squishy, but because my oven is brand new its VERY hot so mine could have done with only 20 minutes!
These delicious beings will last in an airtight container for up to 5 days, but honestly, they’ll be eaten before then.
I’ve never personally tried this mix as an actual cookie, but if you try it out, let me know how you get on – I’d love to know if it worked!
Oreo Cookie Bars!
Amount Per Serving
Calories 193Calories from Fat 63
% Daily Value*
Saturated Fat 4g25%
Vitamin A 195IU4%
* These are only estimates and can vary dependant on brands of ingredients and serving sizes.