Place cannellini beans in bowl, and mash with fork; set aside. Heat a small pan over medium heat; add 2 tablespoons extra-virgin olive oil, and let it warm. Add garlic, and chopped fresh sage leaves. Stir constantly for 4 minutes or until garlic is brown and sage is crispy. Pour hot oil over beans; stir. Garnish with 1 teaspoon extra-virgin olive oil, and add salt and pepper, to taste. Cover and store in fridge up to 1 week.