Combine first 3 ingredients together and let proof 2 minutes or till bubbly
Add oil (or lard), salt, vinegar and sugar, mix till combined.
Add 5-6 cups flour and turn stand mixer on low. Once combined slowly add remaining flour till dough just starts to come away from the side of the mixing bowl. Then stop adding flour.
Turn mixer to medium or #2 setting and let knead for 5 minutes
Place dough into a greased bowl and let rise 1-1.5 hours or until double in size
Form loaves and let rise until double in size
Bake at 400 F for 35 minutes