What do you do with FROSTING and SPRINKLES?

Here's one option: 

 DIP

 

And THEN

CHOMP

What do you do with sprinkles? 

Here's one option: 

CLOSE YOUR EYES TIGHT, SHAKE YOUR HEAD GLEEFULLY SIDE TO SIDE AND SAY "AAAAAAA".

OR 

If that's too informal for you:

SLATHER THE FROSTING ON A DELICIOUS SUGAR COOKIE

 

DELICATELY DUMP ON SOME SPRINKLES

AND THEN EAT THE COOKIE with your

PINKY UP.

OR 

LIKE THIS

IF YOU PREFER

Bon Appetit and Happy Valentines Day!