Air Fryer Red Velvet Oreo Cookie Bars

Ingredients

• 1/2 cup unsalted butter (room temperature)
• 1 cup sugar
• 1 tsp white vinegar
• 1 egg
• 1 tsp vanilla extract
• 1 1/2 tsp red food coloring
• 1 1/2 cups flour
• 2 1/2 tbsp cocoa powder
• 1 tsp cornstarch
• 3/4 tsp baking powder
• 1/4 tsp salt (omit salt if using salted butter)
• 3/4 cup Oreo crumbs
• 8 oz cream cheese (softened to room temperature)
• 6 tbsp unsalted butter (softened to room temperature)
• 3 3/4 cups Confectioners' sugar
• 3/4 tsp vanilla extract
• pinch salt, to taste