How to Make It
Lightly spoon flour into a dry measuring cup; level with a knife. Combine flour, sugar, baking powder, baking soda, and salt in a bowl. Combine orange rind, juice, milk, oil, and egg in a bowl; add to flour mixture, stirring until smooth.
Spoon 1/4 cup batter onto a hot nonstick griddle or nonstick skillet; top with a heaping tablespoon blueberries. Turn pancake when top is covered with bubbles and edges look cooked. Repeat procedure with the remaining batter and blueberries.