Preheat your oven to 160°C fan (180°C conventional / 350°F / gas mark 4).
Grease a 23cm / 9" loaf pan and line it with parchment paper.
In a large bowl mix together the flour, baking soda and spices.
225 g self raising flour, 1 tsp baking soda, 1 tbsp ginger, 1 tsp cinnamon, 1 tsp mixed spice
In a saucepan put the margarine, treacle, golden syrup and milk. Warm gently until combined and then add the mixture to the flour mix.
115 g dairy free margarine, 115 g treacle, 115 g golden syrup, 250 ml dairy free milk
Stir well until the mix is smooth (use a large whisk if necessary).
Pour the mixture into the lined loaf pan (it’ll be quite runny) and bake for 55 minutes until a skewer pushed into the centre of the cake comes out clean.
Leave the cake to cool in the tin before turning it out.