01 - Combine flour, yeast, sugar, and salt in a large mixing bowl. Whisk together warm milk, melted butter, and eggs in a separate bowl. Pour wet ingredients into dry ingredients and mix until a soft dough forms. Knead by hand or with a stand mixer for 8–10 minutes until smooth and elastic.
02 - Place dough in a greased bowl, cover with plastic wrap or a clean towel, and let rise in a warm, draft-free area for 1 hour until doubled in size.
03 - Combine raspberries, sugar, and cornstarch in a small saucepan over medium heat. Stir constantly and cook for 5–7 minutes until thickened to a jam-like consistency. Remove from heat and stir in vanilla and cinnamon. Allow to cool completely before using.
04 - Punch down risen dough and roll out on a lightly floured surface into a 16x12-inch rectangle. Spread cooled raspberry filling evenly over the dough, leaving a ½-inch border around the edges.
05 - Starting from the long side, roll the dough tightly into a log. Using a sharp knife or bench scraper, slice the log into 12 equal rolls, approximately 1 ¼ inches thick.
06 - Arrange rolls in a greased 9x13-inch baking dish, leaving space between each. Cover and let rise for 30 minutes until puffy and nearly doubled.
07 - Preheat oven to 350°F. Bake rolls for 22–25 minutes until lightly golden brown and cooked through. The center should spring back when gently touched.
08 - Whisk together powdered sugar, lemon juice, and lemon zest in a medium bowl. Add milk 1 tablespoon at a time until glaze reaches a pourable consistency.
09 - Drizzle lemon glaze generously over warm rolls. Serve immediately while still warm for the best texture and flavor.