Yeasted Waffles

Name: Yeasted Waffles
Ingredients: ½ cup (1 stick) unsalted butter; 2½ cups (313 g) all-purpose flour; 2 Tbsp. sugar; 1 tsp. baking powder; 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt; 1 tsp. instant yeast; ½ tsp. baking soda; 2 large eggs; 1½ cups buttermilk; Vegetable oil (for waffle iron); 4 fried eggs; Sliced avocado, pickled onion, and/or chili crisp (for serving)