(A) Chocolate Cake :  Sift together into large mixing bowl: 1 cup rice flour (use the Asian kind as it’s not gritty) 1 cup sugar 1/3 cup cocoa powder 1 teaspoon baking soda 1 teaspoon baking powder 1/4 teaspoon salt 1/2 teaspoon guar gum or xanthan gum ** (B) Mix together and add to sifted…