Turn oven on to 200°.
In a very large oven proof bowl, add water, sugar, and yeast. Stir to combine and let sit until yeast activates and blooms (proofs).
Heat bacon drippings until liquid form and let cool before adding to yeast mixture.
Add bacon drippings and salt, stir to combine.
Mix in 5 cups of flour.
Add 5 more cups of flour and knead 7-10 minutes, adding 1-2 more cups of flour as needed until dough isn't sticking to the bowl and dough is a good texture.
Turn off oven!
Grease bowl and let dough rise in warm oven, covered with a cloth or aluminum foil for 1 hour.
Remove bowl from oven and knead dough for 1 minute.
Grease and flour 4 bread pans.
Divide dough into 4 equal portions.
Let rise again in oven for 1 hour.
Bake bread at 350° for 30-35 minutes or until golden brown.
Remove from bread pans immediately and set on wire racks to cool.
Serve warm with butter, jam, or honey.