Combine the water, honey, salt and yeast in the bowl of a stand mixer, or a large glass bowl. Let sit for 5-10 mins. until it is foamy.
Add flour, starting with 3 cups. Knead in the mixer and add flour, 1/4 cup at a time, until the dough cleans the bowl and does not stick to your finger. Knead in stand mixer (with mixer on low speefor 3 minutes. If kneading by hand, tip dough onto a flour counter after adding 3 cups of flour, and knead and add more flour until the dough doesn't stick to your fingers. Knead for 5 minutes.
Form the dough into a loaf shape. Cover with a towel and place above or near your oven. Preheat oven to 400. Let rise for about 20 minutes.
After dough has risen, use a very sharp knife to cut 4-5 slits into the top of the dough. Bake for 18-22 minutes, or until golden brown. Rub crust with butter immediately upon removal.