In this video, Chef John makes a lemon meringue pie in a glass, a tart and delicious take on the pie recipe that requires almost no baking. The lemon filling, which is made of egg yolks, sugar, butter, lemon zest, and lemon juice, is cooked over the stove until thick and shiny. Make the meringue by stirring the leftover egg whites with sugar and vanilla extract until they have stiff peaks. Transfer to the oven and bake until slightly browned. With a chopped shortbread cookie at the bottom of the glass, this dessert is crispy, lemony, and tastes as good as any pie or tart!