1 c. sugar
1 c. butter
2 1/2 c. Cheerios

In large skillet heat the 1 cup sugar and 1 cup butter to boiling, stirring constantly, boil over medium heat, stirring constantly until mixture becomes light brown and thickened, 8 to 10 minutes. Remove from heat and stir in the 2 1/2 cups Cheerios until well coated, turn onto ungreased cookie sheet and spread mixture 1/4" thick. Cool and break into pieces.