Grapefruit Gems

Lemon bars are a favorite cookie at every bake sale, potluck, or dessert buffet I’ve been to. It’s hard to improve on such a classic, but throw a little grapefruit in, and you’ll get an entirely new sweet sensation. Of course, if you chose to stick to the prototypical lemon bar and substitute lemon juice concentrate instead of the grapefruit, well, I wouldn’t protest.