Keep the screen awake with cook mode on the Good Food app.
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Method
step 1
Preheat the oven to 180 degrees celsius or Gas Mark 4.
step 2
Mix butter and sugar together until the mixture is light and fluffy.
step 3
Add in the eggs and vanilla extract then mix together until combined.
step 4
Using a separate bowl, sift the flour and cocoa powder together and add in baking powder.
step 5
Add the flour, cocoa powder and baking powder to the mixture in mix until combined.
step 6
Fold in the chocolate chips a bit at a time and then mix in the marshmallows.
step 7
Using a baking tray, lined with greaseproof paper, use a tablespoon to spoon the mixture on to the tray, 1 tablespoon per cookie should be enough.
step 8
Place the baking tray in the oven for 6 minutes and then turn the cookies around and place them back in for another 6 minutes so that they are evenly baked.
step 9
After the 12 minutes of baking time is over, leave the cookies on the baking tray for 5 minutes to cool before transferring them onto a cooling rack (be careful as they could break) to allow them to cool down completely, this should take between 10 and 20 minutes.