Homemade-Nutella Tart

My first experience with Nutella was in Switzerland. I was a tenth-grader spending the summer abroad in a foreign-exchange student program, at the urging of my high school French teacher. Every morning for breakfast, my host mother offered up coffee (ick) and fresh baguettes (mmm) with butter, fruit jam, and Nutella. I spent the first few nervous days tentatively helping myself to the beurre and confiture and avoiding the brown stuff. My French was okay, but I wasn’t sure I un