01 - Combine flour, instant yeast, sugar, and salt in a large mixing bowl. Whisk to distribute evenly.
02 - Pour warm milk, melted butter, beaten eggs, and lemon zest into dry ingredients. Mix until shaggy dough forms.
03 - Turn dough onto lightly floured surface. Knead for 8-10 minutes until smooth and elastic, adding minimal flour if sticky.
04 - Place dough in greased bowl, turning to coat all sides. Cover with plastic wrap and let rise in warm, draft-free area for 1 hour until doubled.
05 - Combine blueberries, sugar, lemon juice, cornstarch, and lemon zest in small saucepan. Cook over medium heat for 2-3 minutes, stirring constantly until thickened. Remove from heat and cool completely.
06 - Punch down risen dough. Roll into 15x10-inch rectangle on lightly floured surface. Spread cooled blueberry filling evenly to edges.
07 - Starting from long side, roll dough tightly into log. Cut into 12 equal portions using serrated knife or unflavored dental floss.
08 - Place rolls cut-side up in greased 9x13-inch baking dish. Cover and let rise 30 minutes until puffy and nearly doubled.
09 - Preheat oven to 350°F. Bake rolls 22-25 minutes until golden brown and cooked through. Cool in pan 10 minutes.
10 - Whisk powdered sugar, lemon juice, and melted butter until smooth and pourable. Add additional lemon juice if too thick.
11 - Drizzle warm glaze over slightly cooled rolls. Serve warm or at room temperature.