Slightly melt or soften the peanut butter and coconut oil together in the microwave or low heat on the stove.Add this to your blender and the rest of the ingredients.Blend until combined.Pour into a parchment lined loaf pan.Refrigerate until set, about 2 hours.If using chocolate sauce, whisk ingredients together and drizzle over fudge after it's been set.Best if kept refrigerated.