1 1/4 cups all-purpose flour
3/4 teaspoon baking powder
1/2 teaspoon salt
1/2 cup butter, softened
1/2 cup granulated sugar
1 large egg
1 teaspoon vanilla extract
1 cup chopped, chocolate-covered candy bar pieces
    (pieces should be about 1/2 inch in size)

Preheat oven to 325 degrees F.

Sift flour, baking powder and salt together. Set aside.

In large bowl, using an electric mixer, cream the butter and sugar on medium speed until mixture looks fluffy and smooth, about 30 seconds. Beat in the egg and vanilla extract. Stop the mixer and scrape the sides of the bowl with a rubber spatula once during this mixing.

Decrease the mixer speed to low and add flour mixture, mixing just until flour is incorporated. Gently mix in candy bar pieces.

Drop batter by large tablespoons on baking sheets. Bake 15 minutes, until tops of cookies are light golden. Reverse baking sheets from top to bottom and front to back after 7 minutes to ensure even baking. Cool cookies 1 minute on baking sheets, then remove to a wire rack while still warm.