Step 1: In a large bowl, dissolve sugar in warm water. Sprinkle yeast over the mixture and let sit for 5 minutes until foamy.
Step 2: Stir in salt and vegetable oil. Gradually add 5 cups of flour, mixing until a soft dough forms.
Step 3: Turn dough onto a floured surface and knead for 8-10 minutes, adding remaining flour as needed until smooth and elastic.
Step 4: Place dough in a greased bowl, cover with a damp cloth, and let rise in a warm place for 1 hour until doubled in size.
Step 5: Punch down dough, divide in half, and shape into loaves. Place in two greased 9×5-inch loaf pans.
Step 6: Cover and let rise for 30 minutes until dough reaches the top of the pans. Preheat oven to 375°F.
Step 7: Bake for 30-35 minutes until golden brown and bread sounds hollow when tapped. Remove from pans and cool on a wire rack.