Ingredients

Vegetable oil cooking spray 

1 cup coarse yellow cornmeal 

1/2 cup plus 1 tablespoon sugar 

1/4 cup rice flour 

1/4 cup potato starch 

2 tablespoons tapioca starch 

1 1/2 teaspoons baking powder 

Coarse salt 

1 cup low-fat buttermilk 

3 tablespoons vegetable oil 

2 large eggs 

1 1/2 cups seedless red grapes, halved 

Preparation

Preheat oven to 375 degrees. Line a 12-cupmuffin tin with baking cups, and lightlycoat each with cooking spray.

Whisk together cornmeal, sugar, rice flour, potato starch, tapioca starch, baking powder, and 1/2 teaspoon salt in a large bowl. Whisk together buttermilk, oil, and eggs in a medium bowl. Fold buttermilk mixture into cornmeal mixture, thengently fold in 1 cup grapes until combined.

Spoon batter into baking cups, fillingeach three-quarters full. Top with remaining1/2 cup grapes, and sprinkle with remainingtablespoon sugar. Bake until a toothpick insertedinto the center of each comes outclean, about 25 minutes. Transfer pan to awire rack, and let cool for 10 minutes. Turnout muffins onto rack. Let cool completely.