Hawaiian Waffles

Name: Hawaiian Waffles
Prep time: 30 min
Total time: 30 min
Cuisine: American
Ingredients: 1 can (20 ounces) crushed pineapple, undrained; 1/2 cup sugar; 1/2 cup sweetened shredded coconut; 1/2 cup light corn syrup; 1/4 cup pineapple juice; 2 cups all-purpose flour; 4 teaspoons baking powder; 1 tablespoon sugar; 1/2 teaspoon salt; 2 large eggs, separated, room temperature; 1 cup 2% milk; 1/4 cup butter, melted; 1 can (8 ounces) crushed pineapple, well drained; 1/4 cup sweetened shredded coconut; 1/4 cup chopped macadamia nuts; Additional chopped macadamia nuts, toasted, optional