Red Velvet Whoopee Pies

Ingredients

• 2 1/2 cup all purpose flour
• 1 tsp baking soda
• 1 1/2 cup sugar
• 1 tsp salt
• 2 tsp cocoa
• 2 cup vegetable oil
• 2 eggs
• 1 tsp vanilla
• 1 tsp vinegar
• 1 cup buttermilk
• 1 oz red food coloring
• 2 8 oz cream cheese
• 2 cup powdered sugar
• 1 tbsp vanilla