Preheat oven to 350° and line a 11x7 pan with foil. Spray with non-stick spray.
Crush Brownie Brittle in the bag until it's completely crumbs.
Melt butter in a microwave safe bowl and add brownie crumbs. Mix well.
Pat crumbs into the bottom and slightly up the sides of the pan. Bake for 9 minutes.
Meanwhile, in a large bowl with a mixer, beat cream cheese, sugar, and vanilla together.
Turn off the mixer and add the egg by hand. Mix until just combined. Over mixing the egg can cause the cheesecake to crack.
Fold in half the cherries and half the chocolate chips.
Pour into crust and top with remaining cherries and chocolate chips.
Bake for 20-30 min or until the center just barely jiggles. Let cool at room temperature for a couple hours then cover and chill in fridge.
Best served cold.