Crispy Bottom Veggie Buns

Name: Crispy Bottom Veggie Buns
Cuisine: Asian, Chinese
Ingredients: Dough ⁣; 300 g [~2 ½ cups] all-purpose flour (see notes below if using cups⁣); 175 ml [¾ cup] hot boiling water⁣; pinch of salt⁣; Filling:⁣; ½ lb 250g green beans, chopped⁣; 16 oz firm tofu (pressed & mashed⁣); 1 small carrot (finely chopped⁣); a handful of chopped cilantro⁣; 2 teaspoons toasted sesame oil (1 teaspoon salt, a few shakes of white pepper⁣); oil for cooking; sesame seeds; chopped green onion⁣