In a small container mix all the filling ingredients (brown sugar, cinnamon, and nuts/seeds) together and set aside.
In a medium bowl activate the yeast by combining the yeast with warm water, sugar, salt, and oil. Mix then set aside for a few minutes. It should begin to look bubbly.
Add all purpose flour and sweet rice flour to the yeast mixture and mix thoroughly into a dough.
Lightly knead the dough, then cover with a damp cloth and set aside to rise for 1 hour or until dough has doubled in size.If sweet rice is not available just use all purpose flour instead. Once dough is doubled in size punch dough down and knead gently a few times, then cover and set aside to rest again for 30 minutes. *Note: Dough will be very sticky. Punch dough down and turn out onto a lightly floured surface. Divide dough into 8 equal pieces.*Note: adding cooking oil to your hands may help with the stickiness when handling dough Using your fingers flatten a dough ball into a disk one at a time.
Add a tablespoon of filling into the middle of the dough, then gather the sides of the dough around the filling, pinch to seal.
Be sure to seal completely otherwise filling will seep out of the opening.
Preheat a nonstick pan over medium low heat then add enough oil to shallow pan fry dough. Place dough balls seam side down in the pan and lightly pan fry until golden.
Fllip dough ball over then using the pancake spatula or hotteok flattening tool press down evenly on the dough ball to flatten.
Cook until both sides are golden brown then remove from pan and place on a cooling rack to drain and cool.
Serve right away and enjoy hot!