Combine sugar and orange juice in a medium saucepan.
Bring to a boil over medium-high heat. Reduce heat to medium and simmer for 25 minutes until mixture is thickened and reduce to about 1 cup. Remove from heat and set aside.
For the pancakes:
In a large mixing bowl, whisk together flour, baking powder, baking soda, salt, and sugar.
In a separate bowl, whisk together egg, buttermilk, and oil.
Create a well in the center of the dry ingredients. Pour in the egg mixture and stir just until dry ingredients are moist. If batter is too thick, add regular milk 2 tablespoons at a time until batter reaches desired consistency.
Heat a nonstick griddle to 350 degrees. Pour pancake batter by ¼ cup fulls onto hot griddle. Flip the pancakes over when bubbles begin to form on the surface.
Serve pancakes with homemade orange syrup.
Notes
Inspired by Cooking Light Five Star Recipes: The Best of 10 Years