Starbucks Coffee Crumb Cake

• Ingredients:
  
• 1 Box Yellow Cake Mix (plus ingredients on back of box)
• 2 Sticks cold salted butter
• 2 1/4 Cups flour
• 1 1/2 Tablespoons cinnamon
• 1 3/4 Cups sugar
• 1 1/2 Tablespoons vanilla
• Powdered sugar (for dusting)
• 
  

DIRECTIONS

PREPARE cake mixe in large bowl according to directions on box. Spray 9X13 pan with non-stick spray. Pour batter into pan. Bake at 350 for 15-20 minutes or until center is just barely set.

WHILE cakes are baking, prepare crumb topping. In large bowl of electric mixer combine, butter, flour, cinnamon, sugar and vanilla until all crumbly.