Change up the fresh fruit to make these easy parfaits for any season.
Blend sugar, corn starch and salt in a large microwave-safe bowl. Whisk in milk and egg yolks until well blended. Microwave on HIGH power for about 5 to 7 minutes, stirring every 1 to 2 minutes, cooking until pudding is thick and has boiled at least a minute.
Remove from microwave and stir in butter and vanilla. Pour pudding into a bowl to cool. Cover surface with plastic wrap.
To assemble parfaits, place 2 tablespoons of graham cracker crumbs in each parfait glass. Layer pudding and blueberries. Garnish with whipped topping, if desired.
Gluten Free Modification: Make sure to use gluten free graham crackers.