Combine crushed Oreo cookies and melted butter. Press mixture into the bottom and 2 inches up the sides of a 9-inch springform pan. Chill crust for 30 minutes.
25 Oreo cookies, 5 tablespoons butter
In a small saucepan add milk, heavy cream, egg yolks, sugar, and cornstarch. Whisk until smooth.
1.5 cups whole milk, 1.5 cups heavy cream, 2 egg yolks, ½ cup sugar, ⅓ cup cornstarch
Bring to a simmer over medium heat while whisking constantly. Cook for about 10-15 minutes until thickened. Remove from heat and add vanilla extract and butter.
1 teaspoon vanilla extract, 2 tablespoons butter
Put half of the bananas in the bottom of the chilled crust and top with half of the pudding. Repeat with remaining bananas and pudding. Refrigerate for 4 hours or until set.
4 bananas
Just before serving, whip up heavy whipping cream until stiff and combine with crumbled Oreos. Distribute whipped Oreo cream over the cake and serve. 5 Oreo cookies, ¾ cup heavy whipping cream