Beat the cream cheese alone with a hand mixer or in a stand mixer.
Add the sour cream, sugar and vanilla extract. Mix until everything is combined and smooth. Next, add in your eggs one at a time and mix until just combined. Don’t overmix or this will create too much air and your cheesecakes will sink when baked. Not to worry too much on this, as the size of mini cheesecakes eliminates this issue greatly and if it happens, it’s minimal. Plus, they still taste delicious. ? Lastly, fold in your rainbow Jimmie sprinkles with a spatula delicately until combined.
Pour the mixture into your cavities on top of the bottom crust layer. Fill almost all the way to the top.
Bake for 20 minutes, or until they are set. They will still jiggle a little bit. Makes sure they do not crack or they are overcooked.
After baking, allow to cool in the pan completely on the counter. After they are cooled, place in the refrigerator to chill for a couple hours or overnight until firm.