Chicken, Broccoli & Cheddar Potato Waffles

5 yukon gold potatoes
1/3 C. 2% milk
3 T. unsalted butter
1 1/3 C. chopped rotisserie chicken
1 C. shredded cheddar cheese
1 1/3 C. finely chopped boiled broccoli
1/2 tsp. table salt
1/4 tsp. coarse ground black pepper
1 C. all purpose flour
1 large egg

Boil the potatoes until tender about 30 minutes. Drain and place them in a large bowl. Mash them and then add milk and butter. Mix until well incorporated. Stir in the chicken, cheese, broccoli, salt, pepper, flour and egg. Turn on a waffle iron to medium/high heat. Spray with non-stick spray if need be. Pour in 1/3 C. batter and cook until slightly brown.