Pimiento Cheese Corn Muffins

Name: Pimiento Cheese Corn Muffins
Ingredients: Cooking spray; 1 1/4 c. (175 g.) yellow cornmeal; 1 c. (120 g.) all-purpose flour; 1/4 c. granulated sugar; 2 tsp. baking powder; 1 tsp. kosher salt; 3/4 tsp. baking soda; 1/2 tsp. garlic powder; 1/4 tsp. cayenne pepper; 4 oz. shredded cheddar cheese (about 1 c.); 2 large eggs; 3/4 c. whole milk; 1/2 c. (1 stick; 115 g.) unsalted butter, melted; 2 (4-oz.) jars diced pimiento peppers, drained and patted dry; 1/2 c. chopped fresh parsley leaves; Store-bought or homemade pimiento cheese, for serving