Cream the butter and icing sugar together for about two minutes, until light and fluffy
2 Add the egg and mix until fully combined
3 Add the flour and xanthan gum, mix to combine
4 Place the dough in cling film and chill in the fridge for an hour or in the freezer for 10 minutes if you are short for time
5 Dust a work surface or board with a sprinkle of icing sugar
6 Preheat the oven to 180oC and line two baking sheets with either tinfoil or baking parchment
7 Roll out the dough until about 3-5mm thick
8 Cut out 16 cookies using a cookie cutter of your choice and stamp out a heart shape in the middle of eight cookies
9 Place on the baking sheets and bake for about 12-15 minutes
10 Cool the cookies on a wire rack until they are firm
11 Sandwich two cookies together with the strawberry jam