Eat these lemony spice cookies as-is or process into crumbs using a high speed mixer, a food processor or smash them with a rolling pin between two sheets of parchment.
Preheat oven to 350. Line 2 cookie sheets with a silipat or parchment paper. Sprinkle a plate with demerara sugar and set aside.
In a large bowl, cream together the butter and sugar. Add the egg, lemon juice, zest and golden syrup and mix well.
In a separate bowl, whisk together the flour, ginger, baking powder and salt. Slowly add it to the butter and sugar mixture. Mix to thoroughly combine.
With slightly buttered hands, roll dough into 1-inch balls and roll the balls in the demerara sugar.
Place cookies 2 inches apart onto the cookie sheets. Flatten each cookie slightly with the back of a spoon or a spatula.
Bake 8-12 minutes or until set and the bottoms are golden. Cool on wire rack.