8 Tbsp (1 stick) unsalted butter, at room temperature
1 tsp vanilla extract
6 oz semi-sweet chocolate, cut into 1/3-inch pieces
1 cup (5 oz.) chopped chocolate-covered toffee
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Let's Make It
Preheat an oven to 375°F. In a bowl, sift together the flour, baking soda and salt. Set aside.
In a large bowl, combine the brown sugar, butter and vanilla. Using an electric mixer set on high speed, beat until light and fluffy. Beat in the egg. Reduce the speed to low, add the flour mixture and mix just until incorporated. Then mix in the chocolate and toffee.
Spoon the batter by heaping teaspoonfuls onto ungreased baking sheets, spacing the cookies about 2 inches apart.
Bake until golden brown, about 10 minutes, switching the pans and rotating a half turn halfway through baking. Transfer the cookies to racks to cool.