01 - In a large mixing bowl, combine bread flour, ground cinnamon, salt, instant yeast, and sugar. Mix thoroughly to distribute evenly.
02 - Add warm water and softened butter to the dry mixture. Stir with a wooden spoon until a shaggy, sticky dough forms.
03 - Add raisins and knead by hand or stand mixer for 7-10 minutes until the dough becomes smooth, elastic, and passes the windowpane test.
04 - Shape dough into a ball and place in a lightly greased bowl. Cover with a damp towel or plastic wrap and let rise in a warm area for 1-1.5 hours until doubled in size.
05 - Turn dough onto a lightly floured surface. Gently degas and shape into a round or oval loaf, creating surface tension.
06 - Place loaf on a parchment-lined baking sheet or floured proofing basket. Cover and let rise for 45 minutes until puffy.
07 - Preheat oven to 425°F. If using a Dutch oven, place it inside during preheating to get the pot thoroughly hot.
08 - Using a sharp knife or lame, make 3-4 shallow diagonal slashes across the top of the loaf to allow for controlled expansion.
09 - Transfer loaf into the preheated Dutch oven with parchment or place on baking sheet. Cover with lid and bake for 20 minutes to create steam.
10 - Remove the lid and continue baking for 20 minutes until deep golden brown and the loaf sounds hollow when tapped on the bottom.
11 - Remove from oven and brush top with melted butter if desired. Cool on a wire rack for at least 1 hour before slicing to set the crumb.