Mason Jar Crumb Cake
Prep time: 
Cook time: 
Total time: 
Serves: 12
  • 2 tablespoons canola oil
  • 4 cups all-purpose flour
  • 1⁄2cup granulated sugar
  • 2 1⁄2 teaspoons baking powder
  • 1⁄2 teaspoon salt
  • 1 large egg
  • 1⁄2 cup milk
  • 2 teaspoons pure vanilla extract
  • 1 cup light-brown sugar, firmly packed
  • 1 1⁄2teaspoons ground cinnamon
  • 1 cup unsalted butter melted and cooled
  • 12 mini mason jars
  • Spray cooking oil
  1. In a medium bowl, sift together 1½ cups flour, the granulated sugar, baking powder, and salt; set aside.
  2. In a second bowl, whisk together the egg, milk, canola oil, and vanilla.
  3. Using a rubber spatula, fold dry ingredients into egg mixture.
  4. Spray each mason jar with cooking oil.
  5. Pour batter into each jar only filling half way.
  6. In a medium bowl, combine remaining 2½ cups flour, brown sugar, and cinnamon.
  7. Pour melted butter over flour mixture, and toss with a rubber spatula until large crumbs form.
  8. Top each jar with crumb topping.
  9. Place all jars on a cookie sheet.
  10. Bake in a preheated oven at 325 for about 20-30 minutes or until knife comes out clean.
  11. Allow to cool the jars will be very hot.
  12. The cakes stay fresh with the lid for up to 1 week. You can also freeze them.
Recipe by Premeditated Leftovers™ at