Preheat oven to 350°F (176°C)
Cook the pork sausage in a skillet over medium to medium-high heat, breaking apart as it browns to mince (8-10 minutes). Use a slotted spoon to transfer the cooked breakfast sausage to a paper towel lined bowl to drain off any excess grease. Set aside to cool slightly.
Next, place the stick of butter into a 9x5 loaf pan; place the pan into the hot oven to melt the butter while you prepare the dough.
Next, add the flour to a large mixing bowl along with the cooked sausage and grated cheddar cheese. Stir to toss the ingredients together then add the buttermilk and stir to combine. The dough will be wet and sticky.
Use potholders to carefully remove the loaf pan from the hot oven and transfer the sausage bread dough mixture to the pan and into the melted butter.
Bake 45 minutes or until golden brown. (See Notes)
Optional: melt and additional tablespoon of butter in the microwave to brush over the top of the bread once it has been removed from the oven, if desired.
Allow the sausage bread loaf to cool in the pan on a cooling rack for a few minutes before turning out to cool. Enjoy the sausage bread slices warm or at room temperature.