Carrot Cake Oatmeal Cream Pies

Ingredients

• 1 ¼ cup (2 ½ sticks) unsalted butter, softened to room temperature
• 1 cup brown sugar, packed
• 1/3 cup granulated sugar
• 1 large egg
• 1 tbsp pure vanilla extract
• 1 cup grated carrots
• 3 cups quick-cooking oats
• 1 ¾ cup all-purpose flour
• 1 tsp ground cinnamon
• ½ tsp ground ginger
• ¼ tsp ground cloves
• ¼ tsp ground nutmeg
• 1 tsp baking soda
• ½ tsp salt
• ¾ cup (1 ½ sticks) unsalted butter, softened to room temperature
• 3 cups powdered sugar
• 4 tbsp maple syrup
• 3 tbsp heavy cream
• 1 tsp pure vanilla extract
• 1/8 tsp sea salt