Cause you know, a little less sugar is great if it can still taste good.
Less Sugar Buttermilk Syrup
1/2 cup butter
3/4 cup buttermilk
1/2 cup sugar
1/2 teaspoon baking soda
1 teaspoon vanilla
Melt the butter in a medium saucepan. Add the buttermilk and sugar and bring to a boil. Boil for one minute, stirring constantly. Remove from the heat and add the baking soda and vanilla. It will foam up a bit, so make sure your pot is large enough.
Best when served warm. Store the leftovers in the fridge and pop in the microwave to warm it up before the next use. Since it's mostly butter, it will separate and solidify a little. Warming it up and giving it a stir is the solution.
Source: Barefoot in the Kitchen