active dry yeast (about 1 1/2 packages, 3/8 ounces or 11 grams) • granulated sugar • lukewarm water • olive or vegetable oil, plus more for greasing the bowl • large eggs • granulated sugar • table salt • (1000 to 1063 grams) all-purpose flour • raisins (about 70 grams) per challah, if using, plumped in hot water and drained • Poppy or sesame seeds for sprinkling