01 - In a large mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, baking soda, and salt until evenly combined.
02 - In a separate bowl, whisk the buttermilk, egg, and melted butter until smooth.
03 - Add the wet ingredients to the dry ingredients and gently fold together just until incorporated. Do not overmix; a few lumps are fine.
04 - Preheat a griddle or nonstick skillet over medium heat. Lightly grease if needed. Pour 1/4 cup portions of batter onto the hot surface. Cook until bubbles form on the surface and the edges look set, about 2–3 minutes. Flip and cook about 1–2 minutes more, until golden brown and cooked through. Transfer to a plate and repeat with remaining batter.
05 - In a small saucepan, combine blueberries, granulated sugar, and lemon juice. Cook over medium heat, stirring occasionally, for 7–8 minutes or until the mixture thickens slightly and berries begin to burst. Remove from heat and keep warm.
06 - Stack the warm pancakes on plates and generously spoon the blueberry compote over the top. Serve immediately.