Add the starter to a large mixing bowl
Add water, and stir until starter is mostly dissolved, then stir in melted butter and honey
Add flour, 1 cup at a time, then add salt, and stir until a shaggy dough forms. I like to mix with my hands for a bit to get a feel for the dough
Cover, and let rest for 1 hour in a warm place
Start the stretch and folds by lifting up one end of the dough and and stretching it over to the other side. Rotate the bowl a quarter turn, and do another stretch and fold. Rotate, stretch and fold 2 more times, until all 4 sides have been stretched.
Allow to rest 30 minutes, then do another set of stretch and folds, and repeat process 1-2 more times until the dough is stiff and holds its shape after folding
Cover, and allow to rest in a warm place until the dough is nearly double in size, the internal temperature is 77-78℉, has a smooth, shiny appearance and bubbles on the bottom of the dough.
Turn the dough out onto a lightly floured surface, and gently stretch into a rectangle
Pat the dough down with your hands to flatten any large bubbles
Starting at the short end, roll the dough up, pinch the ends, then tuck ends underneath
Place into a 10x5 buttered loaf pan, cover, and let rise for 1-2 hours in a warm place until dough has doubled and risen to the top of the pan
Preheat oven to 375℉, then place pan on center rack, and bake for 35-40 minutes or until golden brown. The loaf should sound hollow when tapped and the temperature should be around 207-209℉
Butter the top of the loaf (if desired), then allow to cool slightly. Transfer to a wire rack and cool completely