Preheat oven to 350°F.
In a large bowl, combine the sugar, butter and syrup. Add the eggs and mix until combined. Slowly add flour, salt and baking soda. Mix well. Slowly add buttermilk and vanilla extract. Pour into a Bundt pan and bake for about 45–50 minutes, just until a toothpick inserted comes out clean. Let cool on a wire rack before removing from pan.