Coffee Toffee Crunch Cake

Ingredients:
1 1/4 cups cake flour, sifted
1 1/2 cups sugar
1/2 teaspoon salt
6 egg yolks
1/4 cup water
1 cup (7 to 8) large egg whites
1 teaspoon cream of tartar
1 teaspoon vanilla
1 tablespoon fresh lemon juice
1 teaspoon grated lemon zest

Coffee Crunch
Unflavored vegetable oil
1 tablespoon baking soda, sifted
1/4 cup strong brewed coffee
1 1/2 cups sugar
1/4 cup light corn syrup

Frosting
2 cups heavy cream
2 tablespoons sugar
2 teaspoons vanilla

Directions:
For the cake: Adjust rack in lower third of oven; preheat oven to 350 degrees. Sift flour, 3/4 cup sugar and the salt onto a sheet of wax paper; set aside.

Using an electric mixer, beat egg yolks with 1/4 cup sugar until thick and pale yellow. Add water and beat until thickened, about 4 minutes. Whisk egg whites in bowl of a heavy-duty mixer just until frothy. Add cream of tartar; whisk until soft peaks form. Add remaining 1/2 cup sugar in a steady stream, whisking until thicker, stiffer, glossy peaks form -- about 2 to 3 minutes. Whisk in vanilla, lemon juice and lemon zest. Pour yolk mixture over whites. Fold together with a rubber spatula. Using a metal spatula, scoop up a third of the flour mixture and sprinkle over mixture; fold in with a rubber spatula. Repeat two more times just until ingredients are incorporated. Gently pour batter into an ungreased 10 inch round tube pan with removable bottom (such as an angel food pan). Level top with a rubber spatula.

Bake for 50 to 55 minutes, or until top springs back slightly when lightly touched. Invert pan over a long-necked bottle to cool for about 45 minutes. To remove cake from pan, slip a flexible metal spatula down one side of pan; slowly trace perimeter to release the cake. When sides are free, push up on bottom to release cake. Tilt cake, with removable bottom still attached, and gently tap bottom against counter to loosen cake. Rotate cake, tapping a few more times,until it appears free. Cover cake with a rack, and invert; remove bottom of pan.

Coffee Crunch Topping: Generously oil a large baking sheet; sift baking soda onto a sheet of wax paper; set nearby. Combine coffee, sugar and corn syrup in a heavy, 4-quart saucepan. Place over medium-low heat, stirring occasionally, until sugar dissolves. When mixture is clear and begins to boil, increase heat to medium- high; cook until mixture reaches 290 degrees on a candy thermometer. Toward end of cooking (around 270 degrees-280 degrees), stir occasionally to prevent mixture from scorching and becoming too foamy). Remove from heat and stir in baking soda (mixture will foam up fiercely). While still foaming, pour out onto oiled baking sheet. Do not spread; let cool undisturbed for at least 1 hour. Crush into very small pieces. (Place between 2 sheets of wax paper and tap or roll with rolling pin.) Store in an airtight container.

For the frosting: Combine cream, sugar and vanilla; beat until cream holds sturdy soft peaks.

To assemble: Slice cooled cake into 3 equal layers using a serrated knife. Spread whipped cream between each layer, carefully stacking layers. Spread remaining whipped cream over top and sides of cake. Refrigerate.

Just before serving, generously sprinkle top and sides with the coffee crunch. Serves 12.

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