Dissolve the yeast and sugar in the 1/2 cup warm water and set aside.
In an electric mixer with a dough hook, combine 3 cups of flour, 2 cups hot water, the canola oil, and the salt. Mix on low until combined.
Add the yeast mixture to the flour mixture and mix until combined.
While mixing on low speed, slowly add in the remaining 3 cups of flour, stopping the mixer and scraping down the sides as needed.
When the flour is incorporated, turn the dough out <g class="gr_ gr_144 gr-alert gr_gramm gr_inline_cards gr_run_anim Grammar multiReplace" id="144" data-gr-id="144">on</g> a floured surface and knead until the dough is smooth and not sticky. If the dough is sticky, add a little more flour and knead until just incorporated.
Cover, and let rise in a warm place for 15 minutes. Punch dough down and gently knead. Let rise and knead 2 more times.
After the third rise and knead, separate the dough into two parts. Shape each part into a loaf and place on a baking sheet. Cover loosely and let rise for 15 minutes more. Bake immediately after rising.
Bake at 375 for 20-25 minutes, until the crust is golden and the bread sounds hollow when tapped. Cool on wire racks