Ingredients
1 c. walnuts
1 c. all-purpose flour
2 tbsp. all-purpose flour
1 tsp. baking soda
1/2 tsp. salt
1 stick unsalted butter
1/2 c. packed light brown sugar
1/4 c. granulated sugar
1/2 tsp. pure vanilla extract
1 large egg
1 c. bittersweet chocolate chips
4 oz. bittersweet chocolate
5 tbsp. heavy cream
2 1/2 tbsp. light corn syrup
2 tbsp. Crème fraîche
Preparation
Step 1Make the cookies: Preheat the oven to 375°. Spread the nuts in a pie plate and toast for 8 minutes; let cool, then chop.Step 2In a bowl, mix the flour, baking soda, and salt. In the bowl of a standing mixer fitted with the paddle (or using a hand-held mixer), cream the butter with the sugars and vanilla at medium speed, about 1 minute. Beat in the egg. With the mixer at low speed, beat in the dry ingredients. Beat in the walnuts and chocolate chips. Spoon level tablespoons of the dough onto 2 ungreased baking sheets, about 2 inches apart. Refrigerate for 30 minutes, until firm.Step 3Make the ganache: Put the chocolate in a bowl. In a saucepan, bring the cream and corn syrup to a boil; pour over the chocolate and let stand for 1 minute. Whisk until smooth. Whisk in the crème fraîche. Refrigerate the ganache, stirring occasionally, until thick and spreadable, 1 hour.Step 4Bake the cookies for 12 minutes, until golden; let cool on the sheets for 2 minutes, then transfer to a rack to cool completely.Step 5Sandwich the chocolate-chip cookies with the ganache and serve.
