Preparation Combine GF flour blend, sweet-rice flour, cane sugar, GF baking powder, baking soda, and salt in a mixing bowl and whisk to thoroughly blend. Combine buttermilk, oil, egg and vanilla in a separate mixing bowl. Whisk to combine. If you are making your own "buttermilk," pour milk into a mixing bowl. Add white vinegar and let sit for about 5 minutes. Then add olive oil, egg and vanilla extract to the milk mixture. Whisk to blend. Stir milk mixture into dry ingredients and whisk until batter is smooth. If batter looks too thick, add more milk, 1 teaspoon at a time. Heat a skillet over medium-high heat. Lightly brush the skillet will light olive oil or canola oil. For medium-sized pancakes, use a 1/4-cup measuring cup for each pancake. Pour into heated skillet and cook until bubbles form and the bottom is golden brown. Flip and cook second side until golden. For larger pancakes, use a 1/3-cup measuring cup to measure batter for each pancake. To freeze pancakes, allow to completely cool. Wrap each pancake separately and place in a plastic freezer bag.Note: Always make sure your work surfaces, utensils, pans and tools are free of gluten. Always read product labels. Manufacturers can change product formulations without notice. When in doubt, do not buy or use a product before contacting the manufacturer for verification that the product is free of gluten.