Step 1

Place egg whites in a medium bowl. With an electric mixer set to medium speed, beat until fluffy, 1 - 2 minutes.

Step 2

In a large microwave-safe bowl, microwave butter for 25 seconds, or until melted. Add remaining waffle ingredients (except whipped egg whites) and 3/4 cup water. Whisk until mostly smooth and uniform.

Step 3

Gently but thoroughly fold egg whites into batter. Stir until just mixed and uniform.

Step 4

Spray a standard round waffle maker with nonstick spray, and set heat to medium. Once hot, pour 1/4th of the batter (about 3/4 cup) into the center of the waffle maker. Close and cook for 4 minutes, or until golden brown and crispy.

Step 5

Transfer waffle to a plate. Repeat to make 3 more waffles, re-spraying between waffles if needed.

Step 6

In a small bowl, combine all topping ingredients except chocolate chips. Mix until uniform.

Step 7

Just before serving, drizzle 1/4th of the PB topping (about 1 tbsp.) over each waffle, and top with 1 tsp. chocolate chips.