Kirstie Allsopp Christmas Dog Biscuits. Ingredients 350 g Flour 2 tbsp of dried Parsley 1 Egg 1 Chicken stock cube 125 ml Hot water. Method Preheat oven to 200C - 400 F - Gas 6 Put the Flour and the dried parsley and egg into a bowl. Dissolve the chicken stock cube in 125 ml of hot water. and pour into the bowl. Mix well together and roll out. Cut out the biscuits and place on a baking tray. Bake for 20 - 30minutes, until golden brown and firm to the touch. Then leave to cool. Put in tin.