Preheat oven to 350°.
Mix together raspberry jam and lemon juice in a small bowl until smooth. Set aside.
Grease the sides and bottom of a 9 inch spring form pan.
To make it easier to take cheesecake off pan, I add a pieace of parchment paper to bottom of pan before locking pan in place. Then I trim off any paper sticking out around pan.
Wrap bottom and sides of pan with tin foil.
In a medium bowl, mix together ingredients for the crust. Press into bottom of pan and about 1 inch up sides. Bake in preheated oven for 8-10 minutes.
When crust is done, lower oven temperature to 300°.
In a bowl of stand mixer using paddle attachemnt, or hand held mixer, cream together cream cheese and sugar. It is very important to make sure your cream cheese is super soft and room temperature. This will allow for a nice and smooth batter with no clumps!
Mix on high speed for about 5 minutes, until batter is nice and smooth and fluffy. You might have to scrape the edges and paddle a few times.
Reduce speed to medium, and add the eggs and egg yolks two at a time, mixing well.
With mixer on low, add sour cream, lemon zest and vanilla extract. Mix well until smooth.
Pour half of batter into spring form pan. Spoon a few drops of jam mixture on top of batter (make sure to save some for the top as well). Using a knife, swirl through the drops of jam until its swirled throughout cake.
Pour the rest of the batter on top, and drop the rest of the jam mixture on top using spoonfuls. Swirl around with a knife.
Place your cheesecake in a water bath by placing cake in a large enough casserole dish, and adding about 1 cup of water to casserole dish (this helps prevent the cheesecake from cracking during baking). **make sure you only do this step if you wrapped the bottom and sides of your pan with foil!
Bake in preheated oven for 2 hours.
The middle will still be jiggly when done.
Let cheesecake sit and cool completely. Place in fridge over night to let it set.
Enjoy!