Step 1

In a large saute pan over medium heat, pour the oil and heat until hot but not smoking, about 1 to 2 minutes. Add the onions and let them saute for 3 to 4 minutes, until they have softened, become translucent, and have started to slightly brown along the edges.

Step 2

Add a cupful of the basic bean puree at a time, over the sauteed onion, and let them season for 3 to 4 minutes.