Name: Coffee-Walnut Cake with Coffee-Mascarpone Cream
Yield: Makes 10 to 12 Servings
Ingredients: 1 cup walnuts (about 4 ounces), toasted, chopped, divided; 1 cup sugar, divided; 1 tablespoon instant espresso powder; 1 1/3 cups all purpose flour; 2 teaspoons baking powder; 1/2 teaspoon ground cinnamon; 1/4 teaspoon baking soda; 1/4 teaspoon salt; 10 tablespoons (1 1/4 sticks) unsalted butter, room temperature; 3 large eggs; 1 large egg yolk; 1/2 teaspoon vanilla extract; 3/4 cup buttermilk; 4 1/2 teaspoons instant espresso powder; 1 tablespoon water; 1 cup chilled heavy whipping cream; 1/2 cup (4 ounces) mascarpone cheese; 1/2 cup powdered sugar; 1/2 teaspoon vanilla extract; 3/4 cup (about 3 ounces) walnuts, toasted, chopped; 1/4 teaspoon ground cinnamon; Pinch of salt

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