Brown Sugar Apple Crumble Cake

Ingredients

• 1/2 cup butter
• 1 & 1/4 cup dark brown sugar
• 1 tsp lemon zest
• 2 large eggs
• 2 tsp pure vanilla extract
• 1 apple, peeled, cored and grated
• 1 & 1/2 cups buttermilk
• 2 cups all purpose flour
• 1 tsp baking soda
• 1/4 tsp baking powder
• 1 & 1/2 tsp cinnamon
• 1/4 tsp nutmeg
• 1/4 tsp ginger
• 1/2 tsp salt
• 1/2 cup dark brown sugar
• 1/2 cup all purpose flour
• 1/4 tsp cinnamon
• pinch of nutmeg
• 1/2 cup pecans, roughly chopped
• 1/4 cup cold butter, cubed
• 3-4 apples, cored and sliced into 1/4 inch thick slices
• 1 cup powdered sugar
• 1 -2 tbsp pure maple syrup