Filling 1. * 1 large head bok choy [about 1 pound, 450g], stem removed and quartered 2. * 3 tablespoons poppy seeds 3. * 1/4 teaspoon Chinese Szechuan peppercorns 4. * 2 medium garlic cloves [1/5 ounce total, 6g], peeled 5. * fresh ginger, peeled and cut into a 3/4-inch [2 cm] cube 6. * 1 small red onion [about 2 ounces, 55g], peeled and quartered 7. * 1/2 cup crumbled farmer cheese [about 3 ounces, 85g] 8. * 1 teaspoon chili powder 9. * 1/4 teaspoon salt 10. * 1 stick unsalted butter [4 ounces, 110g] Dough