Mother-in-law Susan makes these 3 ingredient lifesavers for every school bake sale. I finally got her secret and the whole pan vanishes instantly.

together the peanut butter, brown sugar, and eggs until the mixture is smooth, thick, and fully combined.

3. Spread the batter evenly into the prepared baking dish, smoothing the top with a spatula.

4. Bake for 20 to 25 minutes, until the top is puffed and lightly golden and the center is just set. Do not overbake if you want a gooey middle.
5. Let the