For the pastry cream, you'll need egg yolks, sugar, cornstarch, milk, butter, and vanilla paste.
For the whipped cream and assembly, you'll need heavy cream, sugar, mini nilla wafers, and fresh bananas.
Make the pastry cream
Make the pastry cream, then chill for at least one hour or overnight.
Make the whipped cream
Make the homemade whipped cream by beating cold heavy cream with a couple tablespoons of sugar. Beat until soft peaks form and assemble the jars immediately.
Start with a layer of mini nilla wafers.
Layer fresh banana slices
Then, add a layer of fresh banana slices.
Add pastry cream
Spread an even layer of pastry cream on top.
Top with whipped cream
Lastly, top with the homemade whipped cream.
Repeat the layers until the jar is full. Assemble the remaining jars and chill until ready to serve.