Preheat the oven to 350 degrees, and butter small baking dish or pie plate.
Whisk the eggs, honey, coconut milk, avocado oil, and almond extract in a medium mixing bowl until smooth.
Stir in the flour and baking powder, fold in the blueberries, and pour the batter into a buttered baking dish.
Mix the topping ingredients in bowl, and then sprinkle the topping over the batter.
Bake at 350 degrees for 30 minutes. Let the coffee cake cool for 10 minutes before slicing.