1 ½ouncecube fresh yeast or 1 envelope active dry yeast
2cupswarm water
2tspsalt
¼cupsugar
⅓cupsunflower or other neutral-flavored oil
2eggs, beaten
4cupsall-purpose flour
½cupsemolina flour
½cuprolled oats
1cuponions caramelized in 2 tablespoons oil, coarsely chopped
flaky sea salt or kosher salt to sprinkle
freshly ground pepper
Optional: Poppy seeds for garnishing
Instructions
Crumble the yeast into a large bowl and add the water. When the yeast dissolves, add the salt, sugar, oil and eggs. Mix.
Add 1 cup flour, the oats and the semolina. Mix. Add enough flour to make a sticky, loose dough – about 2 more cups.
Cover the bowl and allow dough to rise until very light and bubbly – about 40 minutes, depending on how warm your kitchen is.
Stir the dough down. Add the remaining cup of flour gradually, kneading lightly in the bowl with one hand as you go. Stop adding flour when the dough barely holds together. The less added flour at this point, the more tender the finished bialy.
Allow dough to double again – about 20 minutes. In the meantime, preheat the oven to 450° F (230° C). Line a baking sheet with baking parchment or grease it well.
Deflate dough and knead again lightly. Sprinkle a little more flour if it sticks to the bowl.
Remove 4 pieces the size of your clenched fist, one by one. (There should be 8 at the end.) Stretch each ball of dough, then fold it over as you would an envelope. Fold and stretch this way three times. If the sticky dough really annoys you, sprinkle flour over your hands, or rub some oil on them.
On baking parchment, roll each dough ball out as long as your open hand, fingers extended. Or pat it out into a rough oval that length. Poke dimples into the dough with your fingers. Spread onions over the surface of the dough. Sprinkle salt and pepper to taste over onions. If garnishing with poppy seeds, sprinkle some in the middle of each bialy for an eye-catching effect.
Poke the dough again, driving in some of the onions and seasonings. Allow dough to rise 10 minutes. Transfer to a baking sheet, four at a time.
If you have two such sheets, you can bake the entire batch at once. Otherwise, put the unused dough in the refrigerator while the first batch bakes, to prevent it from rising again, and repeat the previous two steps to make 4 more bialys when the oven’s free again.