From Food52.com - sent to me from fellow core group member Judith Richardson. Judith says she didn't put the final product back in the oven to bake. She put everything in the food processor warm and didn't need additional olive oil. I think I'll take her advice.
Cannellini Bean Purée
3/4 cups olive oil
2 garlic cloves, peeled and minced
2 1/2 cups cooked cannellini beans, drained and rinsed
1 Tablespoon fresh rosemary, chopped
1 Tablespoon lemon juice, freshly squeezed
1/2 cup Parmigiano-Reggiano cheese, grated
First make the roasted fennel. Preheat the oven to 400 degrees. Toss the fennel and garlic cloves in the olive oil and spread on a sheet pan. Season generously with salt and pepper. Roast for 30-40 minutes, turning twice during cooking. Take out and let cool. When cool squeeze the roasted garlic out of their skins.
Start the cannellini bean purée. In a small frying pan heat 1/2 cup olive oil over medium heat. Add the garlic cloves and cook until lightly golden, add rosemary and cannellini beans and cook for one minute more. Be careful not to burn the garlic. Take it off the heat.
In a food processor combine the garlic bean mixture, fennel, roasted garlic, lemon juice, remaining 1/4 olive oil and all but 3 tablespoons of the Parmigiano-Reggiano. Purée until smooth.
Raise oven temp to 450 degrees. Transfer purée into a small baking dish and sprinkle with remaining cheese. Feel free to add more. If your dish is near full, place it on a baking sheet, in case it bubbles over in the oven. Bake until cheese is golden on top, about 15-20 minutes. Serve with crostini. Enjoy!