Lay out each flour tortilla on a cutting board or plate.

Spread a generous layer of Nutella on half of each tortilla.

Sprinkle mini marshmallows over the Nutella layer.

Fold the tortilla in half to form a quesadilla shape.

Spread the outside of the folded tortilla with softened butter.

Press brown sugar and crushed graham cracker crumbs into the buttered side.

Place the quesadilla, graham side down, onto a preheated grill or skillet over medium heat.

While the first side cooks, butter the top side and press on more brown sugar and graham crumbs.

Cook for 2-3 minutes, flip once golden, then cook the second side for another 2 minutes.

Remove from heat and serve immediately—great with a scoop of ice cream on top!