Yeasty Waffles

Name: Yeasty Waffles
Ingredients: 1 3/4 cups whole milk, at room temperature; 1/2 cup unsalted butter, melted, plus more melted butter for the waffle iron; 2 1/2 cups sifted all-purpose flour; 1 tablespoon active dry yeast (from 2 envelopes); 2 large eggs, at room temperature; 2 teaspoons agave nectar or honey; 1 teaspoon salt; Syrup, fresh fruit and softened butter, for serving