My friend Grace impresses me greatly with her home made from scratch treats that she often brings to office parties. The latest and greatest was a Tiramisu, which comprised of home made lady fingers for goodness sake!! (pictured).
It's not a dessert I tend to gravitate towards, but this was certianly the best I've had and I loved it. You can really taste the care that went into making it. She combined recipes from allrecipes and the Joy of Baking.
If you want to impress like Grace, take a page from her book and enroll in the Institute of Culinary Education.