1 cup granulated sugar
1 1/2 teaspoons baking powder
1 teaspoon baking soda
1/2 teaspoon salt
1/8 teaspoon ground nutmeg
1 cup unbleached all-purpose flour
1 cup buttermilk
1/3 cup reduced-fat milk
1 large egg
3 1/2 tablespoons butter (melted)
2 cups fresh blueberries (plus extra for garnish)
1   grated lemon zest
1 dash canola oil (for griddle or skillet)