Cream Cheese Cookies

Cookies:

1. To the bowl of a stand mixer fitted with the paddle attachment (or large mixing bowl and electric mixer) combine the butter, sugars (highly recommend using some dark brown sugar), egg, vanilla, and beat on medium-high speed until creamed and well combined, about 4 minutes.
2. Stop, scrape down the sides of the bowl, and add the flour, graham cracker crumbs, cornstarch, baking soda, optional salt, and beat on low speed until just combined, about 1 minute.
3. Using a large cookie scoop, 1/4-cup measure, or your hands, form 9 equal-sized mounds of dough, roll into balls, and using your fingers, hollow out the center of each ball as if you were making thumbprint cookies. In doing so, the cookies will naturally flatten. Make sure not to go too deeply and punch through the bottom but go deep enough that each cookie will be able to hold 2 to 3 tablespoons of filling.
4. Place mounds on a large plate or tray and place in the freezer while you wash the mixing bowl and make the cream cheese filling.
5. Cream Cheese Filling: 
6. To the bowl of a stand mixer fitted with the paddle attachment (or large mixing bowl and electric mixer) combine the cream cheese, sugar, and beat on medium-high speed until fluffy and creamed, about 4 minutes.
7. Using a small spoon, equally distribute filling among dough mounds, smoothing the tops lightly with the back of the spoon or a spatula.
8. Place mounds on a large plate or tray, cover with plasticwrap, and refrigerate for at least 2 hours, up to 3 days. Do not bake with unchilled dough because cookies will bake thinner, flatter, and be more prone to spreading.
9. Preheat oven to 350F, line a baking sheet with a Silpat or spray with cooking spray. Place dough mounds on baking sheet, spaced at least 2 inches apart (I bake 6 cookies per sheet).
10. Bake for about 12 minutes, or until edges have set and cream cheese is just set; don’t overbake for soft cookies (bake a few minutes longer for firmer cookies). Cookies firm up as they cool.
11. Allow cookies to cool on baking sheet for about 15 minutes before serving. I let them cool on the baking sheet and don’t use a rack.