Gingerbread Men

Ingredients:

125g butter, at room temperature
1/2 cup brown sugar
1/2 cup golden syrup
1 egg, separated
2 1/2 cups plain flour
1 tbs ground ginger
1 tsp cinnamon
1 tsp nutmeg
1 tsp ground cloves
1 tsp baking powder
1 cup icing sugar
1/2 tsp water
M&M’s to decorate