Vegan Brownie Bomb Bars

Ingredients:
For the Brownie Layer:

1 cup all-purpose flour
1 cup granulated sugar
1/2 cup cocoa powder
1/2 teaspoon baking powder
1/4 teaspoon salt
1/2 cup vegetable oil
1/2 cup unsweetened applesauce
1 teaspoon vanilla extract
For the Cookie Dough Layer:

1/2 cup vegan butter, softened
1/2 cup brown sugar, packed
1/4 cup granulated sugar
2 tablespoons non-dairy milk (such as almond or soy milk)
1 teaspoon vanilla extract
1 cup all-purpose flour
1/2 cup vegan chocolate chips
For the Ganache Topping:

1/2 cup vegan chocolate chips
3 tablespoons coconut milk (or any non-dairy milk)
Instructions: