Pletzl, Parisian

Ingredients

• 1 cup lukewarm water
• 1 scant tablespoon (1 package) active dry yeast
• 4 to 5 cups unbleached all-purpose flour
• 2 large eggs
• 1/4 cup plus 2 tablespoons vegetable oil
• 1 scant tablespoon sugar
• 2 teaspoons salt
• 1/2 cup cold water
• 1 medium onion, diced (about 3/4 cup)
• 2 tablespoons poppy seeds
• Kosher salt