1. | Combine first three ingredients. |
2. | Press into a 9x13" pan. |
3. | Bake at 350 for 20 minutes. |
4. | Mix eggs, sugar, baking powder, lemon juice, and flour in a bowl. |
5. | Pour over top of baked mixture. |
6. | Bake again for 25 minutes. |
7. | Sprinkle with powdered sugar. |