In a small bowl, dissolve the yeast in warm milk and let it sit for 5 minutes until frothy.
In a large mixing bowl, combine flour, sugar, salt, and cinnamon.
Add the softened butter and mix until crumbly.
Stir in the yeast mixture and egg, mixing until a dough forms.
Knead the dough on a floured surface for about 8-10 minutes until smooth.
Incorporate the raisins into the dough, ensuring they are evenly distributed.
Place the dough in a greased bowl, cover it, and let it rise for about 1 hour or until doubled in size.
Punch down the dough and shape it into a loaf.
Place the loaf in a greased bread pan and let it rise again for 30 minutes.
Preheat the oven to 350°F (175°C) and bake for 30-35 minutes or until golden brown.