Chocolate for your Valentine

I'm not big on "Hallmark" holidays, but I'm up for any excuse to have chocolate, which is why I love Valentine's Day. It's not about the flowers, champagne, and jewelery, although those are nice too. It's all about Chocolate!
Here's a fun chocolate cookie recipe for today. This is adapted from my family roll out sugar cookie recipe that we always had at the holidays. These are great for decorating or just cutting into heart shapes and eating as is. They are also the cookies I use for my chocolate cheesecake crust...just pulse them in the food processor and press into the bottom of your cheesecake pan--no additional butter or sugar needed.
Lathrop Chocolate Sugar Cookies
8 oz unsalted butter (1 stick)
12 oz sugar (1 1/2 cups)
3 eggs
2 tsp vanilla
2 tsp cream of tartar
1 tsp baking soda
1/2 tsp salt
3 oz unsweetened cocoa powder (3/4 cup)
18 oz pastry flour or all purpose flour (3 1/2 cups)
Cream together butter and sugar until light and fluffy. Add eggs and vanilla and mix.
Sift together dry ingredients and then gradually add to wet ingredients. Mix just until incorporated--not too long or your dough will be tough.
Cover and chill in refrigerator for at least 1 hour, or overnight.
Roll out dough and cut into shapes. Bake at 375 for 6-8 minutes. Cool on a rack, decorate if desired and enjoy!