Prep & Crust: Preheat oven to 325°F (160°C). Combine graham cracker crumbs, 1 tablespoon sugar, cinnamon, and melted butter. Press firmly into the bottom of a 9-inch springform pan. Bake for 10 minutes, then cool.
Make Filling: In a large bowl or stand mixer, beat the softened cream cheese and 1 cup sugar until completely smooth and creamy. Scrape down the sides. Beat in 1 teaspoon vanilla.
Add Eggs: Add the eggs one at a time, beating on low speed just until incorporated. Do not overmix.
Water Bath: Pour batter over the crust. Wrap the bottom of the springform pan in foil and place it in a larger roasting pan. Fill the roasting pan with hot water 1 inch up the sides.
Bake: Bake at 325°F for 55-60 minutes. The center should still jiggle slightly when shaken.
Topping: Remove from oven. Mix sour cream, 2 tablespoons sugar, and 1 teaspoon vanilla. Spread over the hot cheesecake. Return to oven (increase temp to 375°F) for 10 minutes to set.
Cool: Cool on a wire rack completely, then refrigerate for at least 4 hours or overnight.