Blue Corn Muffins

Name: Blue Corn Muffins
Ingredients: 2 ounces (1/2 stick) unsalted butter; 3 tablespoons finely diced onion; 1 cloves garlic, finely chopped; 1/2 cup milk; 2 large eggs; 1/4 cup finely diced red bell pepper; 1 jalapeno peppers, finely diced; 1/4 cup fresh or frozen corn, thawed; 1 tablespoon finely chopped cilantro leaves; 3/4 cup blue cornmeal (can substitute yellow); 1/2 cup all-purpose flour; 1 1/2 teaspoons baking powder; 1/4 teaspoon baking soda; 1/2 teaspoon salt; 1 tablespoon granulated sugar