Lemon Cake Mix Brownies (Yellowies)

Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking pan.

Combine cake mix, water, oil, egg, and applesauce in a large bowl; stir until just moistened. Spread batter into the prepared baking pan.

Bake in the preheated oven until a toothpick inserted into the center comes out clean, 20 to 22 minutes.

While the cake is baking, mix 2/3 cup powdered sugar and lemon juice together in a bowl. Pour glaze over the "yellowies" as soon as they come out of the oven. Spread glaze with a rubber spatula and set aside until completely cool and glaze has soaked in, about 30 minutes.

Dust with remaining powdered sugar and cut into 24 bars.