Lemon meringue pie is an American innovation, one that's more than 200 years old. Although this long-time diner staple, lemony custard piled high with fluffy meringue, has the look of something that might have emerged in the Pillsbury Bake-Off in the mid-20th century, its roots go much deeper than that.
And to give it an even stronger "stars and stripes" connection, those roots took hold in Philadelphia, only a few blocks from Independence Hall, where the United States itself was born.