Preheat oven to 350°. Grease 8-inch baking pan; set aside.
Combine flour, cocoa powder, baking powder and salt in large bowl; set aside.
Beat egg whites with egg substitute in another large bowl with electric mixer until foamy. Beat in sugar and vanilla until slightly thickened. Gradually add flour mixture, then Promise® Buttery Spread and beat just until blended. Spread into prepared pan; sprinkle with pecans.
Bake 23 minutes or until toothpick inserted in center comes out clean. Cool completely on wire rack. Just before serving, drizzle with caramel topping.