In a medium-sized saucepan, heat the milk, 1/2 cup of sugar, eggs, vanilla extract, and cornstarch over medium heat, stirring frequently to prevent the mixture from burning.
Once the mixture boils, reduce the heat to low and simmer for 10-15 minutes, stirring occasionally.
Pour the custard into a 9-inch pie plate.
Melt the butter in a small saucepan over low heat.
Spread the melted butter over the custard.
Spread the jelly over the custard and butter.
In a medium-sized bowl, beat the egg whites until stiff peaks form.
Add the remaining 1/2 cup of sugar to the egg whites and beat until combined.
Spread the meringue over the jelly layer and bake in the oven for 15 minutes, or until the meringue is golden brown.
Allow the dessert to cool before serving.
Interesting Facts
Mark's Delight originated in the United Kingdom.
The dessert is often served at special occasions such as birthdays and weddings.
The meringue topping is what makes this dessert so special!