Place flour in a large mixing bowl. Set aside.
Place 1/4 cup water in a small cooking pot.
Place over high heat and bring to a boil.
When water is boiling, carefully pour into flour.
Add sweet rice flour, 1/3 cup Cold Water, sugar and baking powder to the bowl. Mix well.
Form mixture into 10 equal-sized balls.
Place balls on a work surface and pound flat.
Place 2 teaspoons sweet lotus paste in center of each flattened ball.
Roll dough up around paste to from back into a ball shape, enclosing paste completely.
Place sesame seeds in a large shallow bowl.
Roll balls in sesame seeds to get a nice even covering (See photo above).
Place oil in a wok.
Heat to medium-low.
When oil is hot, place balls inside. Deep fry for about four minutes, or until outside is golden brown and balls float on top of oil.
Remove balls and set on serving plate.
Dust very lightly with powdered sugar and sprinkle with mint leaves.