This easy custard cake filling recipe is perfect for adding a creamy and delicious layer to your cakes. It requires only a few ingredients and is simple to prepare.
	
    
    	
    		Directions
    	
					Step 1
			In a saucepan, heat the milk over medium heat until it is just about to boil.
					Step 2
			In a bowl, whisk together the sugar, egg yolks, and cornstarch until smooth.
					Step 3
			Gradually pour the hot milk into the egg mixture, whisking constantly to avoid curdling.
					Step 4
			Return the mixture to the saucepan and cook over medium heat, stirring constantly, until it thickens and comes to a boil.
					Step 5
			Remove from heat and stir in the vanilla extract.
					Step 6
			Let the custard cool completely before using it as a cake filling.