Ingredients:

• 3/4 cup (about 3 3/4 ounces) all-purpose flour
• 1/4 cup (about 3/4 ounce) cocoa powder
• 1/2 plus 1/8 teaspoon baking soda
• 1/8 teaspoon salt
• 1/2 cup plus 2 tablespoons (about 4 1/3 ounces) granulated sugar
• 1/2 cup plus 2 tablespoons sour cream
• 1/3 cup vegetable oil
• 1 large egg
• 1/2 teaspoon pure vanilla extract

Whipped Cream:

• 50 Oreo cookies
• 4 1/2 cups heavy cream
• 2 tablespoons granulated sugar
• 1 tablespoon pure vanilla extract

Directions:

1. Adjust oven rack to middle position and preheat oven to 350-deg. Line bottom of a 9-inch cake pan with parchment paper and lightly coat the inside with non-stick pan spray. Sift flour, cocoa, baking soda, and salt into large bowl; set aside. In medium bowl, whisk sugar, sour cream, oil, eggs, and vanilla until smooth.
2. Whisk wet ingredients into dry ingredients until smooth. Pour batter into pan and bake until cake is just firm and toothpick inserted into center comes out with moist crumbs, 20 to 25 minutes. Let cake cool in pan for 15 minutes, then remove from pan to completely cool on wire rack, about 1 hour.
3. Carefully cut 6 Oreo cookies in half; set aside. Chop remaining cookies into 1/4-inch pieces; set aside.
4. Make the Oreo whipped cream in 2 batches. In bowl of standing mixer fitted with whip attachment, whip 2 cups cream on medium-high speed to soft peak, spoon into large bowl and refrigerate. In same mixer bowl, whip remaining 2 1/2 cups cream, sugar, and vanilla to soft peak. Fold into already whipped cream.
5. Place about 1 cup whipped cream in bowl and refrigerate until ready to decorate cake. Fold chopped Oreo’s into remaining whipped cream.
6. Slice cake in half horizontally to create 2 layers. Place bottom layer on serving plate. Spread about 1/3 of Oreo whipped cream onto cake. Top with second cake layer and use remaining Oreo whipped cream to frost top and sides of cake. Chill in refrigerator for about 2 hours to allow cookies to soften.
7. Place reserved whipped cream in pastry bag fitted with star tip (re-whisk if necessary). Pipe 12 whipped cream rosettes around perimeter of cake and garnish with reserved Oreo cookie halves. Serve.

Ingredients:

• 2 3/4 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1 cup butter-softened
• 1 1/2 cups white sugar
• 1 egg
• 1 teaspoon vanilla extract

Directions:

1. Preheat oven to 375 degrees F (190 degrees C). In a small bowl, stir together flour, baking soda, and baking powder. Set aside.
2. In a large bowl, cream together the butter and sugar until smooth. Beat in egg and vanilla. Gradually blend in the dry ingredients. Roll rounded teaspoonfuls of dough into balls, and place onto ungreased cookie sheets.
3. Bake 8 to 10 minutes in the preheated oven, or until golden. Let stand on cookie sheet two minutes before removing to cool on wire racks.

Ingredients:

• 1/2 cup butter, softened
• 1/2 cup shortening
• 1 1/2 cups white sugar
• 2 eggs
• 2 teaspoons vanilla extract
• 2 3/4 cups all-purpose flour
• 2 teaspoons cream of tartar
• 1 teaspoon baking soda
• 1/4 teaspoon salt
• 2 tablespoons white sugar
• 2 teaspoons ground cinnamon

Directions:

1. Preheat oven to 400 degrees F (200 degrees C).
2. Cream together butter, shortening, 1 1/2 cups sugar, the eggs and the vanilla. Blend in the flour, cream of tartar, soda and salt. Shape dough by rounded spoonfuls into balls.
3. Mix the 2 tablespoons sugar and the cinnamon. Roll balls of dough in mixture. Place 2 inches apart on ungreased baking sheets.
4. Bake 8 to 10 minutes, or until set but not too hard. Remove immediately from baking sheets.

Ingredients:

• 1 cup butter, softened
• 1/2 cup white sugar
• 2 cups all-purpose flour
• 4 eggs
• 1 1/2 cups white sugar
• 1/4 cup all-purpose flour
• 2 lemons-juiced

Directions:

1. Preheat oven to 350 degrees F
2. In a medium bowl, blend together softened butter, 2 cups flour and 1/2 cup sugar. Press into the bottom of an ungreased 9×13 inch pan.
3. Bake for 15 to 20 minutes in the preheated oven, or until firm and golden. In another bowl, whisk together the remaining 1 1/2 cups sugar and 1/4 cup flour. Whisk in the eggs and lemon juice. Pour over the baked crust.
4. Bake for an additional 20 minutes in the preheated oven. The bars will firm up as they cool. For a festive tray, make another pan using limes instead of lemons and adding a drop of green food coloring to give a very pale green. After both pans have cooled, cut into uniform 2 inch squares and arrange in a checker board fashion.