Combine blueberries, 1/4 cup sugar, 1 teaspoon rind, 1 tablespoon juice, and 1 tablespoon water in a small saucepan; bring to a boil over medium-high heat. Cook 10 minutes or until blueberries break down, stirring frequently.
While compote cooks, combine remaining 2 tablespoons sugar and remaining 2 teaspoons rind in a large bowl. Using your fingers, rub rind mixture together for 15 seconds. Weigh or lightly spoon flour into dry measuring cups; level with a knife.
Add flour, baking powder, and salt to rind mixture, stirring with a whisk.
Combine milk and next 5 ingredients (through eggs) in a small bowl, stirring with a whisk; add remaining 1 tablespoon lemon juice.
Add milk mixture to flour mixture, stirring just until moist.
Preheat a griddle to medium heat. Coat pan with cooking spray. Spoon 1/4 cup batter per pancake onto griddle. Cook 3 minutes or until edges begin to bubble and bottom is browned. Turn pancakes over; cook 3 minutes or until done.