Preheat the oven to 360F/180C/160 Fan.
Melt the margarine, golden syrup and sugar together in a saucepan or in the microwave. Don’t allow it to boil.
1/4 cup golden syrup, 1/2 cup butter, 7/8 cup muscovado sugar
Set the syrup to one side to cool a little whilst you measure the flour, ginger, cinnamon and bicarbonate of soda into a mixing bowl.
7/8 cup muscovado sugar, 1/2 cup butter, 2 3/4 cups self-raising flour, 1 teaspoon bicarbonate of soda, 2 teaspoons ground ginger, 1/2 teaspoon ground cinnamon
Break the egg into a small bowl and whisk it a little. Add this to the flour with the cooled syrup and stir to form a dough. It will be fairly stiff.
1 egg
Using a cookie scoop (or 1 1/2 tablespoon amounts,) scoop out balls of dough and place them on a baking tray, lined with baking parchment. Space the cookie dough about 3 cms/ 1 1/2 inches apart to give them room to expand a little.
Flatten the dough balls slightly using your hands. This will give you a large, slightly thick, chewy, cookie. Don't flatten them if you want a nice thick cookie.
Place in the oven for about 10 minutes to bake. The cookies are done when they’re golden brown around the edges.
Leave the cookies on the tray for a few minutes to cool as they’re a little bit fragile straight out of the oven. Then move them onto a cooling rack to finish cooling.