tart by combining your dry ingredients in a large mixing bowl. Whisk together the 1 (16 ounce) box of mochiko sweet rice flour, 2 cups sugar, and 1 teaspoon baking powder until they're evenly distributed.
In a separate bowl, blend together the 1 1/2 cups milk, 1 teaspoon vanilla, and 1 cup creamy peanut butter until smooth and well incorporated. The peanut butter should be fully dissolved into the wet mixture to ascertain even distribution throughout the batter and prevent lumps in the final pancakes.
Gradually fold the wet ingredients into the dry mixture, stirring gently until just combined. The batter should have a thick, creamy consistency—thicker than traditional pancake batter but still pourable.
Avoid overmixing, as this can develop gluten and result in denser pancakes rather than the signature fluffy, cloud-like texture you're aiming for. Let the batter rest for a few minutes to allow the mochiko flour to fully hydrate.
Heat a non-stick griddle or skillet over medium-low heat and lightly dust the cooking surface with potato starch to prevent sticking.
Pour the batter onto the griddle in your desired pancake size and cook slowly—these pancakes require more time than traditional varieties due to their density and the mochiko flour's unique properties. Cook until the edges appear set and the bottom is lightly golden, then flip carefully and cook the other side until golden brown. Serve immediately while still warm and fluffy.