1. Preheat oven to 350°F. Coat a 9- x 13-inch baking dish with cooking spray.
2. In a medium bowl, combine Streusel ingredients; mix with a fork until crumbly, and set aside.
3. In a large bowl, whisk pancake mix, granulated sugar, baking powder, cinnamon, and salt. In a medium bowl, whisk milk, eggs, butter, and vanilla. Add egg mixture to pancake mix mixture and stir until combined. Pour batter into baking dish and sprinkle evenly with streusel.
4. Bake 40 to 45 minutes or until toothpick inserted in center comes out clean.
Recipe and Image from the Mr. Food Test Kitchen
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