1. Preheat oven to 350 degrees. 2. Make crust: mix together first three ingredients with a fork until crumbly. press into an 8 inch square cake pan and bake for 20 minutes. do not brown. 3. Mix the rest of the ingredients with a mixer until well mixed. Pour over the pre-baked crust. Place in oven for an additional 20 minutes. 4. remove from oven and sprinkle with powdered sugar. Allow to cool before cutting.
