CHOCOLATE ECLAIR CAKE

Ingredients:
1 box (14.4 oz) graham crackers

2 boxes (3.4 oz each) instant vanilla pudding mix

3 cups cold milk

1 tub (8 oz) whipped topping (such as Cool Whip), thawed

For the chocolate ganache topping:

1 cup semi-sweet chocolate chips

1/2 cup heavy cream

1 tablespoon unsalted butter

1 teaspoon vanilla extract