Mix flour, dry yeast, sugar, and salt in a bowl. Add water and knead for 15 minutes.

Cover and let the dough rise in a warm place until doubled in size (about 1 hour).

Tip: Gently press the dough with your finger—if the dent stays, it’s ready.

Mix pork, soy sauce, sesame oil, green onion, and ginger for the filling.

Divide dough into pieces, flatten, and fill with pork mixture. Seal well.

Place buns on parchment paper and let rest for 15 minutes.

Steam over high heat for 15 minutes until cooked through.