No Bake Cookies in Bar Fashion

Today I wondered what would happen if I made no-bake cookies as a bar instead of drop cookies. After I made the cookie, I spread it in a jelly roll pan on top of wax paper and let it cool. Once it was cool, I cut it into diamonds and bars. It worked really well and made thin, chocolaty-oatmeal pieces of goodness!
1-3/4 cups white sugar
1/2 cup milk
1/2 cup butter
4 tablespoons unsweetened cocoa powder
1/2 cup crunchy peanut butter
3 cups quick-cooking oats
1 teaspoon vanilla extract

In a medium saucepan, combine sugar, milk, butter, and cocoa. Bring to a boil, and cook for 1 1/2 minutes. Remove from heat, and stir in peanut butter, oats, and vanilla. Drop by teaspoonfuls onto wax paper. Let cool until hardened.