In a saucepan, add the sugar, buttermilk, butter, corn syrup, pumpkin pie spice, and salt to a boil.

Allow to boil for 4 minutes while stirring constantly.

Remove from heat and stir in the baking soda. Be careful because the baking soda will cause the mixture to bubble up. Stir until combined.

Allow to cool to warm and serve over french toast, waffles, or pancakes.