These are delicious! I made a batch last week and had to give them another try...
Recipe taken from the Ottolenghi Cookbook and makes 25-30
90g plain flour
1/4 tsp salt
1/2 tsp baking powder
1/2 tsp bicarbonate of soda
100g unsalted butter at room temperature
1tsp vanilla ectract
110g soft brown sugar
25g caster sugar
1 egg, lightly beaten
80g whole rolled oats
60g white chocolate chips
75g dried cranberries
Preheat oven to 170C/Gas Mark 3. Sift together flour, salt, baking powder and bicarbonate of soda and set aside.
Put butter, vanilla and sugars in large mixing bowl and beat with a wooden spoon until the mixture is lighter in colour and texture. Gradually add the egg, making sure each addition is fully incorporated before adding more. Fold in the flour mixture and the oats, then the chocolate and cranberries. Do not over-mix.
Chill the mixture slightly to help shape the biscuits. Scoop out a teaspoon of the dough and shape into a ball (the size of a walnut). Press the balls lightly on to baking trays lined with baking parchment, leaving 6-7 cm between them as they spread. Place in oven and bake for 10 minutes, but keep an eye on them as they are ready as soon as they are a good golden brown colour. Remove from the oven and allow to cool on the trays before serving.
If you don't have time to make all the biscuits in one go, the dough will keep in the freezer and you can make another batch at a later date - just allow the dough to thaw a little before shaping into balls.