- 1 cup all purpose flour
- 1/4 cup sugar
- 1/2 cup (1 stick) chilled unsalted butter, cut into 1/2-inch pieces
- 1 cup sugar
- 1/2 cup all purpose flour
- 2 large eggs
- 4 tablespoons (1/2 stick) unsalted butter, melted, cooled
- 1 teaspoon vanilla extract
- 1 cup miniature semisweet chocolate chips
- 1 cup coarsely chopped macadamia nuts (about 7 ounces)
- Preheat oven to 350°F. Blend flour and sugar in processor. Add butter; process using on/off turns until mixture resembles coarse meal. Transfer mixture to 8-inch square glass baking dish. Press mixture onto bottom and 3/4 inch up sides of dish. Bake until crust is golden brown on edges, about 15 minutes.
- Whisk sugar, flour, eggs, butter and vanilla extract to blend in large bowl. Stir in chocolate chips and nuts.
- Pour filling into warm crust, smoothing surface. Bake until filling is golden brown and tester inserted into center comes out with moist crumbs attached, about 50 minutes. Transfer dish to rack; cool completely. (Can be prepared 1 day ahead. Store in airtight container at room temperature.) Cut int 16 squares.