Swirled Mint Cookies

1    Egg
2 c  Flour                               
1 ts Vanilla
1/2 ts Baking powder                     
1/2 ts Peppermint extract
1 c  Butter
1 c  Sugar 
10 dr Red food coloring
10 dr Green food coloring

Combine flour & baking  powder. 
Beat butter until softened. Add sugar & beat until fluffy. 
Add egg  & extracts & beat well. 
Add flour mixture & beat till well mixed. 

Divide  dough into thirds. Stir red food coloring into one third, green into another, &
leave one third plain. Cover each and chill one hour. Roll each color into 1/2" diameter
ropes. Using one rope of each color, twist together (Like a three-colored candy cane).
Slice twisted ropes into 1/4" pieces. Place slices 2" apart on ungreased cookie sheet and
flatten to 1/4" thickness with bottom of a glass dipped in sugar. Bake in 375~ oven until
just set (do not brown), about 8 minutes. Remove and cool on racks.