Watermelon Sugar Cookies

1 ½ C Butter, Softened
2 C Granulated Sugar
4 Eggs
1 tsp Vanilla Extract
1 tsp Salt
2 tsp Baking Powder
5 C All-Purpose Flour
½ tsp Watermelon Flavoring
Red and Green Food Coloring
Chocolate Jimmies

In a large bowl, cream the butter and sugar. Beat in eggs. Add vanilla and watermelon extract. Stir in the flour, baking powder and salt. Remove approximately 1 ½ C dough, set aside. Add several drops of red food coloring to dough in bowl. On parchment paper, roll red dough into a 12" log and wrap with plastic wrap. Flatten bottom of roll. Chill in refrigerator one hour. Add several drops of green food coloring to remaining dough. Place between two pieces of parchment paper. Roll to 12" x 12" size. Chill in refrigerator one hour.To assemble: Place red dough, flattened side up, in the center of the green dough. Mold dough up to edge of red dough. Trim excess green dough. Cut flat side down, into ¼" slices with sharp knife. Place 2" apart on ungreased cookie sheet. Sprinkle with chocolate jimmies for seeds. Bake at 400° for 6 to 8 minutes. Cool. Store between layers of wax paper in airtight container.