Basic Cheesecake Filling

Here’s where it gets fun. The more cream cheese you use, the denser
the cheesecake will be (but not dry!) The more eggs you use, the
fluffier it will be. There’s a delicate balance here – 1 lb cheese
and 3 eggs will give you a fluffy cheesecake, but if you use 2 lbs
cheese, 3 eggs is an absolute must if you don’t want it to be flat.
More eggs than 3, and you’ll taste the eggs. 1 lb cheese and 2 eggs
is a nice balance, too, but going any lower than that you’ll just end
up with something flat.

The powdered sugar works best for two reasons – number one, powdered
sugar contains corn starch, which acts as a thickener, and number
two, you don’t have to worry about the grittiness of undissolved
sugar in your cake. The yogurt or sour cream adds moistness and a
little bit of tang to the cake. It’s not necessary, but it adds oomph
to either a bland cake or a citrus-flavored cake. For liqueur, add
no more than 1/2 cup if you’re using the yogurt or sour cream, and
make sure you’re using the three eggs. If you eliminate the
yogurt/sour cream, you can increase the liqueur to 3/4 cup, and 2
eggs will work (but three is still better – two works best only if
you’re not using the yogurt/sour cream and your liqueur is only 1/2
cup.) A fruit or vegetable puree should be relatively dry – drain
off the liquid in a sieve, or put it in a saucepan, mix in some
cornstarch, and heat it until it’s thick. You can use an entire cup
of puree if you eliminate the yogurt/sour cream. Either mix in the
puree with the batter, or reserve a cup or so of batter, mix it with
the puree, then swirl it into the cheesecake.

The vanilla is a must, in my opinion. Lots of times, I’ll throw in an
extra teaspoon for good measure. Other extracts can enhance the
flavor – banana extract in a strawberry cheesecake, coconut extract
or almond extract in an Amaretto cheesecake, etc.

Another addition would be cocoa or chocolate. Cocoa mixes in nicely
without making the cheesecake gooey – 4-6 Tbsp will do it. Melted
chocolate or white chocolate chips shouldn’t really exceed 6 oz, even
4 oz will usually do enough for the flavor. If you’re doing the
swirl thing, use only 2-3 oz melted chocolate for the batter that’s
being swirled in. Make sure the melted stuff is cooled before you mix
it in.

(see also Basic Cheesecake Crust and Basic Cheesecake Method &
Toppings)