1 yellow cake mix 3/4 c oil 4 eggs 1 c brown sugar 1 T cinnamon
Icing:
2 c powdered sugar 4 T milk 1 T vanilla extract
Preheat oven to 325. Mix cake mix, oil, and eggs together. Pour half the batter into a round pan. You may wanna grease yer pan first. Combine brown sugar and cinnamon. Sprinkle over the batter. Spoon in rest of batter to cover brown sugar and cinnamon. Swirl cake with a butter knife. Bake for about 40 minutes (sometimes longer depending on how good yer oven heats...make sure and put some foil over the rack or use a big pan - cause sometimes this cake likes to grow) until done.
Whisk icing ingredients into smooth. Drizzle over hot cake.