Ingredients
200g butter at room temperature, plus extra for the pan
250g light brown sugar
2 egg yolks
½ tsp vanilla extract
275g plain flour
1 tsp baking powder
150g chocolate chips
100g other cookie fillings, such as pretzels, chopped nuts, pieces of toffee or fudge, marshmallows vanilla ice cream, to serve (optional)
Method
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Heat oven to 180C/160C fan/gas 4. Tip the butter and sugar into a large mixing bowl, beat until combined, then stir in the yolks and vanilla. Tip in the flour, baking powder, chocolate chips, a pinch of sea salt and any other fillings you want to add. Mix until a crumbly dough forms.
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Lightly butter a 25cm ovenproof frying pan. Spoon in and flatten the cookie mixture. For a gooey dessert, bake for 20 mins, leave to rest for 5 mins, then scoop straight from the pan and serve with ice cream, if you like. For a firmer cookie you can cut, bake for 30 mins, then leave to cool completely before cutting into wedges.
