1 1/2 c. powdered sugar
1 1/4 c. butter, softened
1 egg
3 c. all-purpose flour
1/4 tsp. salt

Mix powdered sugar and butter with egg. Mix in flour and salt. Divide the dough into halves and stir 1/4 cup dry cocoa into one half. Refrigerate at least one hour. Shape the chocolate dough into a long roll about 1 1/2 inches in diameter. Flatten the other half (white dough) and roll it out into a rectangle to fit around the chocolate dough. Place the chocolate dough in the center of the white dough and roll the white dough around the chocolate roll, pinching the ends together to seal. Wrap in wax paper and refrigerate at least 8 hours. Heat oven to 400 degrees. Cut the roll of dough into 1/8 inch slices. After shaping, place about 1 inch apart on an ungreased baking sheet. Bake until set, about 8 minutes.

SHAPING: Take two of the cookie slices and lay them side by side. Push them together and seal slightly. Put one M&M candy in the center of the chocolate part of each cookie and put a half peanut at the bottom of the intersection for a "nose". Pinch dough slightly at the top (one side of each cookie) for "ears". Bake as directed.