Best Snickerdoodle Crumb Cake Recipe - How to Make Snickerdoodle Crumb Cake

Ingredients

• 6 tbsp. butter, softened, plus more for pan
• 1 1/4 c. all-purpose flour, plus more for pan
• 3/4 c. sugar
• 1 large egg
• 1 c. sour cream
• 1 tsp. pure vanilla extract
• 1/4 tsp. baking soda
• 1/2 tsp. baking powder
• 1/2 tsp. cinnamon
• 1/4 tsp. kosher salt
• 1/2 c. brown sugar
• 1/4 c. sugar
• 2 tsp. cinnamon
• 1/2 tsp. kosher salt
• 3/4 c. butter, melted and cooled slightly
• 1 1/4 c. all-purpose flour
• 1/2 c. powdered sugar
• 2 tbsp. milk