Help identifying this French pistachio cake?

My friend enlisted my help in recreating this cake? Tart? Baked good? they had in Paris. They said it was very dense and moist and had a crispy crackley top, kind of like a brownie top. Thought this would be the best place to see what it is and if anyone had a recipe! Here is a picture she took of it and a google translate of the name on the tag! Thank you all for taking a look!