Ingredients:
For the Custard Filling:
- 2 cups whole milk
- 1/2 cup granulated sugar
- 1/4 cup cornstarch
- 1/4 tsp salt
- 4 large egg yolks
- 2 tbsp unsalted butter
- 2 tsp vanilla extract
For the Crust:
- 1 box (8 oz) yellow cake mix
- 1/2 cup butter, softened
- 1 large egg
- 1 tsp vanilla extract
For the Topping:
- Powdered sugar (for dusting)
Instructions:
- Prepare the Custard Filling:
- In a medium saucepan, whisk together the milk, sugar, cornstarch, and salt. Bring this mixture to a gentle boil over medium heat while constantly stirring.
- In a separate bowl, whisk together the egg yolks. Once the milk mixture begins to boil, slowly pour about 1/2 cup of the hot mixture into the egg yolks while whisking constantly to temper the eggs.
- Gradually add the tempered egg yolks into the saucepan, stirring constantly. Continue to cook and whisk for 2-3 minutes until the custard thickens to a pudding-like consistency.
- Remove from heat and stir in the butter and vanilla extract. Set aside to cool slightly.
- Prepare the Crust:
- Preheat your oven to 350°F (175°C).
- In a mixing bowl, combine the cake mix, softened butter, egg, and vanilla extract. Mix until a soft dough forms.
- Press the dough into the bottom of a greased 9×9-inch baking dish, spreading it evenly across the bottom.
- Assemble the Squares:
- Pour the slightly cooled vanilla custard filling evenly over the cake crust in the baking dish. Smooth out the top to ensure it’s level.
- Bake the Custard Cream Squares:
- Bake for 30-35 minutes or until the top is golden and the edges are set.
- Let it cool in the pan for at least 1 hour, then refrigerate for an additional 2-3 hours to fully set.
- Serve:
- Once chilled and set, cut into squares and dust with powdered sugar before serving.