01 - In a large mixing bowl, whisk together all-purpose flour, instant yeast, granulated sugar, and salt until thoroughly combined.
02 - Pour in warm milk, melted butter, eggs, and lemon zest. Stir with a wooden spoon until a shaggy dough begins to form.
03 - Turn dough onto a lightly floured surface. Knead for 8-10 minutes until smooth, elastic, and no longer sticky. Add small amounts of flour if needed.
04 - Place dough in a lightly greased bowl, turning once to coat. Cover with plastic wrap and let rise in a warm, draft-free area for 1 hour or until doubled in size.
05 - Combine blueberries, granulated sugar, lemon juice, cornstarch, and lemon zest in a small saucepan. Cook over medium heat, stirring constantly, for 2-3 minutes until mixture thickens. Remove from heat and cool completely.
06 - Punch down risen dough and roll into a 15x10-inch rectangle on a lightly floured surface. Spread cooled blueberry filling evenly over dough, leaving a 1/2-inch border.
07 - Starting from a long edge, tightly roll dough into a log. Using a sharp knife or unflavored dental floss, slice log into 12 equal rolls.
08 - Arrange rolls in a greased 9x13-inch baking dish, spacing evenly. Cover with a clean towel and let rise for 30 minutes until puffy.
09 - Preheat oven to 350°F. Bake rolls for 22-25 minutes until golden brown and cooked through. Rotate dish halfway through baking for even browning.
10 - Whisk powdered sugar, lemon juice, and melted butter in a small bowl until smooth and drizzling consistency. Add more lemon juice if needed.
11 - Drizzle warm lemon glaze evenly over rolls immediately after removing from oven. Serve warm or at room temperature.