In the bowl of a mixer add the flour, sugar, salt, and yeast. Mix with a dough hook
Pour the beer, water, honey, and butter. Keep mixing with the dough hook for a few minutes. If mixture seems very watery, add 2-3 more tablespoons of flour
The dough is mixed well when it cleans the bottom and sides of the mixer. It takes about 4-6 minutes using a standing mixer or 15 minutes when done by hand. Keep in mind that this dough is very sticky
Spray a clean bowl with nonstick spray, insert the ball of dough and sprinkle some flour on top. Cover with plastic and a clean kitchen towel and allow to proof in a dark warm area for 2 hours
Punch the dough and place on a floured surface, knead a few times and shape into a loaf, seam side down
Grease a loaf pan and place the dough inside. Cover with plastic and a clean kitchen towel and allow to proof for 45 minutes (you can leave it a bit longer if desired)
Preheat oven to 350 degrees F
Score the top of the bread by making a few shallow horizontal lines on the surface using a knife
Brush the egg on top and sprinkle the oats
Bake for 40-45 minutes or until the top has browned
Remove from the oven and unmold carefully into a cooling rack. Let it cool before cutting (if you can resist)
Enjoy!