Coffee Flavored Belgian Waffles

Name: Coffee-Flavored Belgian Waffles
Ingredients: 1½ cups all-purpose flour; ¼ cup granulated sugar; ¼ cup (packed) light brown sugar; 2 teaspoons baking powder; ½ teaspoon kosher salt; ¼ teaspoon baking soda; 2 large eggs, room temperature, beaten to blend; 2 tablespoons whole-milk ricotta, room temperature; 1¼ cups buttermilk; 2 tablespoons instant espresso powder, plus more for serving; 5 tablespoons unsalted butter, melted, plus more for brushing; Pure maple syrup and whipped cream (for serving); A Belgian waffle iron