preheat oven to 350, grease 8 inch pan or round 9 inch
whisk together dry ingredients, cut in butter to resemble course crumb
add egg, milk, and liqueur..it will be lumpy...put evenly in prepared pan
mix together topping ingredients, spread on top and slide a knife through a couple of times to incorporate into batter
bake for 25-30 minutes until batter isn't wet and is slightly firm, a knife through a couple of times to incorporate batter
bake for 25-30 minutes until batter isn't wet and is slightly firm, cool for a few minutes
mix liqueur and powdered sugar ingredients
in small bowl melt chocolate chips and cream for 30 second intervals stirring
drizzle on top of coffee cake, sprinkle chips on top