Preheat oven to 325 degrees Fahrenheit. Grease a loaf pan, and if you wish, line with parchment paper (to easily remove loaf after baking).
Place all ingredients in the blender and purée on medium-low speed for about 20 seconds, until sweetener is fully mixed in. (You may also use a bowl and handheld electric beaters if preferred.)
Pour the purée into prepared loaf pan and bake until a toothpick inserted in the center comes out clean, about 35 to 40 minutes. Loaf will be split on the top, mounded and golden colored.
