• In a large pot mix together the whole milk and half and half.
• Remove 1 cup and place in a sauce pan.
• Bring the whole milk and half and half and heat on low.
• While that is heating add the yolks, guar gum, Swerve and salt to another sauce pan. Mix well and bring to a boil then simmer 5 minutes.
• Pour the yolk mixture into the large pot of milk and cream and increase to medium heat.
• Whisk constantly, pour in the vanilla extract, vanilla stevia and banana extract. Continue to whisk until mixture thickens to pudding consistency, about 5 minutes.
• Remove from heat, pour into a bowl and cover a piece of plastic wrap directly onto the surface of the pudding so a skin does not form. Allow to cool.

To Assemble:

• Place one tablespoon of cookie crumbles into bottom of each mason jar.
• Spoon in ¼ cup pudding over crumbles.
• If using banana, layer 3 slices of banana over pudding.
• Sprinkle another tablespoon of cookie crumbles.
• Finish with ¼ cup more of pudding.
• Top with whipped cream and more cookie crumbles if desired.