Old Fashioned Banana Pudding Cake

Cake:
1 box Ducan Hines Yellow Cake mix
3/4 cup of oil
4 room temp eggs
1 cup sour cream
3/4 cup brown sugar
2 tbsp cinnamon
PUDDING:
3 room temp egg yolks
2 cups of evaporated milk
1/3 cup of flour
Dash of salt
1/2 tsp vanilla extract
1/2 tsp lemon extract
2 bananas
30 vanilla wafers
Meringue
3 egg whites room temp
1/4 cup of sugar
#old fashion banana pudding #cake