Chocolate Chip Cookie Layer Cake with Nutella Buttercream

Ingredients

• 1 cup + 2 Tbsp. flour
• 1/2 tsp. baking soda
• 1/2 tsp. salt
• 1/2 cup butter (softened to room temp)
• 1/4 cup + 2 Tbsp. brown sugar
• 1/4 cup + 2 Tbsp. sugar
• 1/2 tsp. vanilla extract
• 1 large egg
• 1 cup mini chocolate chips
• 1/4 cup chopped hazelnuts
• 1 cup butter (room temperature)
• 2 1/2 cups powdered sugar
• 3/4 cup Nutella
• 3 Tbsp. heavy cream
• 2 tsp. vanilla extract
• 1/4 tsp. salt