Blueberry Buckle

What in the world is Buckle?  Absolutely delicious!
Buckle is a cake made of three layers and has the texture of an American coffee cake.
The first layer is the cake batter, then a layer of fruit and finally a crumble topping.
The cake looks "buckled" because of the cracks and crevices made in the crumbly topping. 

Buckles are thought to have originated during colonial times, probably in New England. They were made using kitchen staples and seasonal fruits or berries - whatever was to hand.
The beauty of a buckle is that you can make changes to the recipe to suit yourself - the type of fruit or berries, sugar, spices. It's up to you!
I like to use a glass baking dish measuring 9.5 x 13.5 x 2" rather than the smaller 11  x 7 x 1 1/2 " or  8 x8" pans given in some recipes - I prefer the texture I get and it also serves more people!

Here is my version of Blueberry Buckle
Cake:                         
1/2 cup butter                   
1 cup sugar                         
1 egg                                    
2 1/2 cups plain /all-purpose flour                      
2 1/2 tsp. baking powder    
1/4 tsp. salt
1/2 cup milk

Fruit Layer:
3 cups blueberries

Crumble Topping:
1/2 cup sugar
1/2 cup plain /all-purpose flour
1/2 tsp. cinnamon
1/4 cup butter

Preheat the oven to 350F / 180C
To make the cake batter:
In a large bowl, beat the butter with the sugar until creamy.
Add the egg and mix well.
In another large bowl, sift the flour with the baking powder and salt.
Add the dry mixture to the creamed mixture alternately with the milk and mixing well after each addition.
Pour into a greased  9.5 x 13.5 x 2" pan.

Sprinkle the blueberries evenly over the batter.

To make the Topping:
In a bowl, sift the sugar and the flour with the cinnamon and blend in the butter.
Work the mixture with fingers until it forms course crumbs.
Sprinkle the topping mixture over the blueberries.
Bake for 45 to 50 minutes.
Cool slightly and cut into squares.
Serve warm. Delicious cold too!