When can you stop in?

The gal that is living with us for 2 weeks gave us this recipe. Better yet, she made them for me AND cleaned up the mess. SWEET! That's what I call easy cooking! We are enjoying the dozen yummy muffins.
2 c. flour
1 tsp baking powder
3 bananas
1/2 c oil
1 c. sugar
1/2 tsp baking soda
1 tsp salt
4 T sour cream
cinnamon
vanilla
chocolate chunks
{with the last three ingredients ...you decide according to your taste. Enjoy}
350
Approx. 20 or 25 min