Preheat oven 375 F. Spray paper cups with cooking spray, place into a muffin tin and set aside. In a large bowl, whisk applesauce, vanilla and non-dairy milk together. In another bowl, whisk flour, baking powder, salt, sugar, and cocoa together. Pour dry mix into wet mix in 2-3 batches, stirring to combine. Once combined, gently stir in chocolate chips. Spoon batter into cups and bake 15-20 minutes.