Cuisinart Chocolate Cake

1. Using metal blade, process eggs and sugar until light, fluffy and pale yellow, about 90 seconds. Add cocoa and process 25 - 30 seconds to combine. Scrape down work bowl. Cut butter into 1" pieces and add to mixture; process until creamy, about 15 seconds.
2. With the motor running, pour milk and vanilla through feed tube. Scrape work bowl. Add flour and baking soda and pulse just until flour disappears, 2 or 3 pulses. Pour into two greased and floured round layer pans, or one rectangular baking pan, and bake at 350° until done, about 30 minutes.