Where do "La Tasca" get there "Seville orange and chocolate cheesecake"?

I recently ate at a La Tasca Tapas resteraunt and had the: Tarta de Queso, Chocolate y Naranja / Seville orange and chocolate cheesecake for dessert. It was great,



Does anyone know where they get it from?



Or do they make it themselves? (If so, any ex-employees want to pass on the recipe?)Where do "La Tasca" get there "Seville orange and chocolate cheesecake"?
I have never eaten there but this recipe below is simply wonderful!! I love it!!



Chocolate Orange Supreme Cheesecake



Serving Size: 10



Ingredients:

1 cup chocolate wafer crumbs

1/4 teaspoon cinnamon

3 tablespoon margarine -- melted

32 ounce cream cheese -- softened

3/4 cup sugar

4 large eggs

1/2 cup sour cream

1 teaspoon vanilla

1/2 cup semi-sweet choc. chipsmelted

2 tablespoon orange flavord liqueur

1/2 teaspoon grated orange peel





Cooking Directions:



Combine crumbs, cinnamon and margarine; press onto bottom of 9-inch

spring- form pan. Bake at 325 degrees F., 10 minutes. Combine cream

cheese and sugar, mixing at medium speed on electric mixer until well

blended. Add eggs, one at a time, mixing well after each addition. Blend

in sour cream and vanilla. Blend chocolate into 3 cups batter; blend

liqueur and pell into remaining batter. Pour chocolate batter over crust.

Bate at 350 degrees F., 30 minutes. Reduce oven temperature to 325 degrees

F. Spoon remaining batter over chocolate batter continue baking 30

minutes more. Loosen cake from rim of pan; cool before removing rim of

pan. Chill.