Gluten Free Chocolate Cake

This recipe is another one that I have learned at the community kitchen. The recipe we made at the community kitchen was adapted from this chocolate cake recipe. We used less garbanzo beans and less sugar.
The result was a very light and fluffy chocolate cake that had a little, not altogether unpleasant, garbanzo bean taste.
So I changed the recipe yet again. Instead of garbanzo beans I used lima beans (thanks to Sarah for this idea!) and instead of white sugar I used ...coconut sugar! As coconut sugar has a more distinct taste than white sugar, I hoped it would help mask the taste of beans even more.

1 1/2 cups dark chocolate chips
15 oz cooked baby lima beans
4 eggs
1/2 cup coconut sugar
1/2 tsp baking powder
1 tsp vanilla extract
powdered sugar for dusting
Meld chocolate chips in a double boiler or in the microwave.
Combine beans and eggs in a blender until smooth. Add sugar, baking powder and blend again. Then add melted chocolate.
Make for 40-45 minutes at 350F / 180C until knife or toothpick inserted into the center comes out clean.
Dust with powdered sugar after cooling.