Make this recipe a recipe that people in that category can eat. categories: ['gluten_free'], recipe: mix butter and sugars until thoroughly combined. beat in egg, yolk and vanilla until combined. add dry ingredients and mix thoroughly. stir in chips. roll dough into log and cut into 1/4 cup discs. refrigerate till very firm. bake on silpat silicone baking sheet liners at 325 for 21 minutes or until cookies are light golden brown and outer edges start to harden yet centers are still soft and puffy. do not overbake! cookies will appear to be underbaked when removed from the oven. cool cookies on silpat sheets until cool. store in air tight container.

Target recipe: set the oven to 190°c/375°f/gas 5. beat the butter and sugars together in a mixing bowl until creamy. break the egg into the bowl and beat it into the mixture until smooth. then add the vanilla essence and mix. add the flour, salt and bicarbonate of soda to the mixture, a little at a time, and stir everything together well. now add the chocolate chips and stir them in until they are evenly spread through the mixture. butter the baking trays and spoon small mounds of the mixture on them leaving quite big spaces between the mounds. bake the cookies for 10 to 12 minutes until they are an even golden brown colour, then transfer them to a wire rack to cool.