To make crust, combine flour and sugar in small bowl. In another small bowl, microwave butter until melted. Work melted butter into flour and sugar mixture until well blended and crumbly. Press mixture into bottom of microwave safe baking dish, 8" round is what I use. Microwave for 4 minutes. Set crust aside.
To make filling, combine eggs and sugar, beat until fluffy. Add all remaining ingredients, beat slowly until cornstarch is well dissolved, about 1 full minute. Do not overmix.
Pour this mixture over baked crust. Cook on high 3 1/2 to 4 1/2 minutes, just until center begins to set. Remove and let chill in refrigerator. Before cutting, dust with powdered sugar. I cut mine into small 1 1/2" bites, place each bite in a paper or foil baking cup as they are quite rich. Enjoy!