Prep the pan: Grease a 9x5-inch loaf pan with butter or nonstick spray. Line with a parchment sling if you have one for easy lifting.

Make the dough (fast-track): In a large bowl, whisk flour, instant yeast, sugar, and salt. Add warm milk, 2 tablespoons melted butter, egg, and vanilla (if using). Stir until a shaggy dough forms.

Knead briefly: Turn dough onto a lightly floured surface and knead 3–5 minutes until smooth and slightly tacky. If using a mixer with a dough hook, mix on medium-low for about 4 minutes.

First rise: Place dough in a greased bowl, cover, and let rise in a warm spot until puffy and nearly doubled, about 45–60 minutes. For very busy mornings, you can make the dough the night before and refrigerate; bring to room temp 30 minutes before shaping.

Mix the filling: Combine brown sugar and cinnamon. Stir in 4 tablespoons melted butter until it looks like wet sand.

Roll it out: On a floured surface, roll the dough into a 10x14-inch rectangle. Keep the edges even for a cleaner twist.

Spread and roll: Spread the cinnamon-butter mixture evenly over the dough, leaving a 1/2-inch border on one long side. Starting from the opposite long side, roll tightly into a log. Pinch the seam to seal.

Slice and twist: With a sharp knife, slice the log lengthwise to expose the layers. Turn the cut sides up. Cross one strand over the other to create a simple two-strand twist, keeping the cut sides facing up for maximum cinnamon swirls.

Pan it: Coil or fold the twist into the prepared loaf pan, tucking the ends under if needed. Don’t worry if it looks rustic—it bakes up beautifully.

Second rise: Cover loosely and let rise until puffy, 25–35 minutes. The dough should spring back slowly when poked.

Bake: Preheat oven to 350°F (175°C). Bake 28–35 minutes, until the top is deep golden and the center reads about 190°F on an instant-read thermometer. If browning too fast, tent with foil for the last 10 minutes.

Glaze (optional): Whisk powdered sugar with 1–2 tablespoons milk and a splash of vanilla until smooth. Drizzle over the warm loaf.

Cool and slice: Let the loaf cool in the pan 10 minutes, then lift out and cool another 10–15 minutes before slicing. It will be easier to cut and won’t squash the layers.