Ham-and-Cheese Waffles

Ingredients

• 2 teaspoons double-acting baking powder 
• 1 teaspoon baking soda 
• 1 cup butter melted (2 sticks)
• 1 cup buttermilk 
• 3 large egg whites 
• 3 large egg yolks 
• 1.8 cups flour 
• 1 cup thinly-cut strips of ham 
• 1 teaspoon kosher salt 
• 12 servings maple syrup 
• 0.8 cup sharp cheddar shredded white
• 0.8 cup soda water 
• 1 tablespoon sugar 

Equipment

• bowl
• oven
• whisk
• hand mixer
• waffle iron

Directions

1. Preheat oven to 300°F.
2. Heatwaffle iron until very hot.
3. Whisk 1 3/4 cups flour, 1 tablespoonsugar, 2 teaspoons baking powder,1 teaspoon baking soda, and 1 teaspoonkosher salt in a large bowl.Using an electric mixer, beat3 large egg whites in a mediumbowl until medium-softpeaks form.
4. Whisk 3 large eggyolks, 1 cup (2 sticks) meltedbutter, 1 cup buttermilk, and3/4 cup soda water in a mediumbowl; gradually whisk into dryingredients. Fold in egg whites.Coat waffle iron with nonstickvegetable oil spray.
5. Pourbatter onto iron, spreading itinto corners (amount of batterneeded will vary according tomachine). Scatter 1 roundedtablespoon thin strips of ham and1 tablespoon shredded sharp whitecheddar over each waffle. Cookuntil golden brown and cookedthrough.
6. Transfer to a bakingsheet; keep waffles warm inoven between batches.
7. Servewith butter and warm maple syrup.