Description
No-Bake Custard Slice is a creamy, layered dessert made with a smooth homemade custard, crunchy biscuit layers, and a sweet vanilla icing topping. This easy-to-make treat requires no oven baking, making it perfect for warm days or those looking for a fuss-free dessert with delicious custard flavor.
Ingredients
Scale
Biscuit Layers
- 2 packs plain graham crackers or digestive biscuits (or vanilla wafers)
Custard
- 4 cups milk
- 1/2 cup sugar
- 1/3 cup cornstarch
- 2 tsp vanilla extract
- 3 egg yolks
- 2 tbsp butter
Icing
- 1 cup powdered sugar
- 1-2 tbsp milk
- 1/2 tsp vanilla extract
Instructions
- Prepare the pan: Line an 8×8 or 9×9 square pan with parchment paper to prevent sticking and make it easier to remove the slice once chilled.
- Layer the biscuits: Arrange a layer of plain graham crackers, digestive biscuits, or vanilla wafers evenly to cover the bottom of the pan completely.
- Mix custard base: In a medium saucepan, whisk together the milk, sugar, and cornstarch until the mixture is smooth and free of lumps.
- Heat custard mixture: Place the saucepan over medium heat, stirring constantly to prevent lumps. When the mixture is hot, slowly whisk in the egg yolks to combine thoroughly.
- Thicken custard: Continue stirring over medium heat until the custard thickens, which should take about 5 to 7 minutes. Make sure it doesn’t boil to avoid curdling.
- Finish custard: Remove the saucepan from the heat, then stir in the butter and vanilla extract until smooth and fully incorporated.
- First custard layer: Pour half of the freshly made custard evenly over the biscuit layer, spreading carefully with a spatula if needed.
- Add second biscuit layer: Place another layer of biscuits on top of the custard, covering it evenly.
- Second custard layer: Pour the remaining custard over the second biscuit layer, spreading it smoothly.
- Final biscuit layer: Finish with a final layer of biscuits to top the slice.
- Prepare icing: In a small bowl, mix the powdered sugar, milk (start with 1 tbsp and add more if needed), and vanilla extract until smooth and spreadable.
- Top the slice: Evenly spread the vanilla icing over the top biscuit layer with a spatula or knife.
- Chill: Place the slice in the refrigerator and chill for at least 4 hours, preferably overnight, to allow the custard to set and flavors to meld.
- Serve: Slice into squares with a sharp knife and serve chilled for the best texture and taste.
Notes
- Use parchment paper for easy removal of the slice from the pan.
- Make sure to whisk constantly when heating the custard to prevent lumps and curdling.
- The chilling time is essential for the custard to set properly; overnight chilling yields the best results.
- You can substitute biscuits with vanilla wafers for a sweeter, vanilla-forward flavor.
- If your icing is too thick, add milk a few drops at a time until desired spreadability is reached.
