Heat oven to 400F degrees. Grease a baking sheet with nonstick spray and set aside.
Add flour, sugar, baking powder, baking soda and salt to a mixing bowl. Mix well to combine ingredients.
Add butter to flour mixture and cut in with two knives or a pastry blender. Mixture should look like coarse meal.
In a separate bowl, whisk together sour cream, buttermilk, lemon juice and zest.
Add lemon mixture to dry mixture and gently fold to combine.
Lightly flour a surface and turn dough out onto it. Knead dough 4-5 times.
Cut dough in half. Form dough into 2 separate 5-inch circles on the baking sheet.
Gently cut each circle into 6 wedges, but don't separate. Top with a sprinkle of turbinado sugar, if using.
Bake for approximately 14 minutes or until light golden in color.
Notes
Serving size: 1 sconeWW Points: 5Check the WW Points for this recipe and track it in the WW app. (Must be logged into WW on a smartphone or tablet.)5SmartPoints (Green plan)5SmartPoints (Blue plan)5SmartPoints (Purple plan)4PointsPlus (Old plan)If mixture seems dry add an additional tablespoon of buttermilk.For an orange-flavored scone, substitute orange juice and grated orange rind for the lemon.Add 1-2 drops of lemon or wild orange doTERRA essential oil to wet ingredients.Add dried fruit (raisins, cranberries or currants).