Tangy Cheese Bites

Directions

1. 1
   Preheat the oven to 375 degrees F (190 degrees C). Butter 2 baking sheets.
2. 2
   Cut crusts off bread. Cut bread into 1 1/2-inch cubes; set aside.
3. 3
   Melt butter in a large saucepan over medium heat. Stir in cream cheese until melted. Remove from heat; stir in Cheddar and blue cheeses until melted.
4. 4
   Beat egg whites in a small bowl until stiff peaks form. Fold into the cheese mixture. Dip bread cubes in the cheese, turning to coat.
5. 5
   Place dipped bread cubes on the prepared baking sheets.
6. 6
   Bake in the preheated oven until bottoms are golden brown, 12 to 15 minutes. Serve warm.