Layer order for stripes: flour, cocoa, sugar, baking powder + soda + salt mixed together, then chocolate chips on top.
To Bake the Cake
Empty jar contents into a large bowl. Stir or sift well. Then add:
1 cup milk (or dairy-free alternative)
½ cup vegetable oil (or melted butter)
2 tsp vanilla extract
1 cup boiling water (last, stir gently)
Pour into a greased 9×13 baking dish. Bake at 350°F for 30–35 minutes, or until toothpick comes out clean. Cool before frosting.
