Add the sugar, cocoa and flour in the jar. Tap the jar lightly on a towel on the counter to pack the ingredients down to make room for the final dry ingredients.
Notes
Recipe to attach to the jar (printable version here)Deliciously Dark Chocolate Cake Ingredients
1 jar cake mix
2 large eggs
1 cup milk
½ cup vegetable oil
2 teaspoons vanilla extract
1 cup boiling water
Heat oven to 350°F. Grease and flour two 9-inch round baking pans. Stir together the ingredients of the jar. Add eggs, milk, oil and vanilla; beat on medium speed of mixer 2 minutes. Stir in boiling water (batter will be thin). Pour batter into prepared pans. Bake 30 to 35 minutes or until wooden pick inserted in center comes out clean.