Here's a recipe from my files from Fine Cooking (haven't tried these): Crisp Chocolate Chip cookies
CRISP CHOCOLATE CHIP COOKIES
(Texture is thin and crisp)
"Adding more white sugar than brown sugar increases the crispness. Be sure butter and eggs are room temperature... to help cookies spread thinner as they bake. Greased baking sheets encourage cookies to spread even more."
INGREDIENTS:
12 oz (1 1/2 cups) unsalted butter, room temperature
1 cup granulated sugar
3/4 cup packed light brown sugar
2 large eggs, room temperature
2 tsp pure vanilla extract
13 1/2 (3 cups) unbleached all-purpose flour
1 tsp salt
1 tsp baking soda
12 oz semisweet chocolate chips
DIRECTIONS:
Arrange oven racks in upper and middle positions. Preheat oven to 375 F and grease two baking sheets.
In medium bowl, whisk together flour, salt, and baking soda. Set aside.
With stand mixer, beat together butter and sugars on high until light and fluffy, about 1 minute. Scrape bowl and beater.
Add eggs and vanilla and beat on low until blended. Beat on high until light and fluffy, about 1 minute. Scrape bowl and beater.
Add flour mixture to butter mixture, and beat on medium low until just blended. Stir in chocolate chips.
Drop by rounded tsp about 2 inches apart onto greased baking sheets.
Bake until deep golden brown around edges and golden in center, 8-10 minutes, rotating sheets halfway through for even results.
Remove sheets from oven, let sit 3-5 minutes, then transfer cookies to wire rack to cool completely.
Makes about 6 dozen 3-inch cookies.
Edited from Fine Cooking - Issue #56, March 2003
http://www.finecooking.com/recipes/crisp-chocolate-chip-cookies.aspx?ac=ts&ra=fp