YEAST: In a small bowl, combine 1 tsp instant dry yeast with 1 tbsp lukewarm water. Mix until thoroughly blended, then set aside for 15 minutes.
CAKE BATTER: Place 9oz rice flour into a large mixing bowl. Whisk briefly to break up any clumps, then add 1¼ cup room temperature water into the same bowl and mix until blended. Set aside.
SYRUP: Place 1 cup of water and ¾ cup of white sugar (or to taste) into a small pot and bring to a slight boil, while whisking, to completely dissolve the sugar. Pour this syrup into the cake batter mixture and mix until thoroughly incorporated.
Allow the cake batter + syrup mixture to come to a warm temperature (about 90℉ - 95℉), then add the yeast mixture and stir until ingredients are well blended.
Cover the mixing bowl, then place into a warm environment for 2 hours for proofing, or until the entire surface of the mixture is bubbly.
Add ½ tsp of neutral oil into the mixture, then whisk until combined.
Grease an 8x8 baking pan with the remaining ½ tsp of neutral oil, then carefully pour the mixture into the pan.
Steam over medium high heat for 30 minutes, or until an inserted toothpick comes out clean.
When the cake is cool enough to be handled, gently flip it onto a cutting surface. Cut them into pieces and ENJOY!!!