Cinnamon Crumb Cake • Kroll's Korner

Ingredients

• 1 cup unsalted butter (melted and slightly cooled)
• 3/4 cup dark brown sugar (packed)
• 3/4 cup white granulated sugar
• 1 Tbsp. ground cinnamon
• 1 tsp. salt
• 2 1/2 cups all purpose flour (divided)
• 3 cups cake flour (spooned and leveled )
• 1 tsp. baking powder
• 1 tsp. baking soda
• 1 tsp. cinnamon
• 1 cup unsalted butter (softened to room temperature)
• 1 cup white granulated sugar
• 2 large eggs (room temperature)
• 2/3 cup sour cream (room temperature)
• 1/3 cup whole milk (room temperature)
• 2 Tbsp. vegetable oil
• 1 Tbsp. vanilla extract
• powdered sugar (for garnish)