Keto Pretzel Bites with Cheese Sauce

Name: Keto Pretzel Bites with Cheese Sauce
Cuisine: American
Ingredients: 2 cups shredded mozzarella cheese; 2 ounces cream cheese; 1 1/2 cups almond flour; 1 tablespoon coconut flour; 2 teaspoons baking powder; 1 large egg; 1 large egg white, beaten until it triples in volume; 1 large egg white; 1 1/2 tablespoon sea salt or Everything seasoning for sprinkling on top; 1 tablespoon butter; 1/4 cup heavy cream; 1 cup good quality shredded sharp cheddar cheese