VIDEO : Neil Patrick Harris and David Burtka's Children Are Adorable

Burtka took to Instagram on Wednesday to share a sweet snap of 6-year-old Gideon and Harper baking cupcakes with a little help. RELATED: Neil Patrick Harris and David Burtka Bring Their Adorable Twins to See Blue Man Group: Pic! "There is nothing like having little helpers in your kitchen!!" MORE: Neil Patrick Harris and Daughter Harper Take a Snowy 'Thrill Ride' on Telluride Vacay -- Watch! And it looks like the twins aren't just having fun in the kitchen, they're also learning to play chess!