Lemon Blueberry Coffeecake

My famous lemon blueberry coffeecake!

It is my mommy's birthday today and I decided to make her this absolutely amazing cake.
This is my all time favourite cake recipe.  It turns out perfect every time.  I don't have the words to describe how delicious this cake is.  You HAVE to try it!

Cake:

1 1/2 cups All-purpose flour
1 tsp baking powder
1/2 tsp baking soda
1/4 tsp salt
1/2 cup margarine
3/4 cup granulated sugar
1 egg
1 tsp vanilla
1/2 cup plain yogurt
1 tbsp finely grated lemon rind
1 1/2 cups blueberries

Glaze:

1/2 cup icing sugar
1 tbsp lemon juice
2 tsp margarine

1.  In a medium bowl, mix together flour, baking powder, soda and salt.
2.  In a large bowl, with electric mixer, cream margarine and sugar until light and fluffy.  Beat in egg and vanilla.
3.  Stir in yogurt and lemon rind.  Stir dry ingredients into creamed mixture, just until well mixed.
4.  Remove 1 cup of batter and set aside.  Spread rest of batter in a springform pan greased on bottom only.
5.  Place rest of batter back in bowl, stir in washed and well dried blueberries.  Spread over batter in the    pan.
6.  Bake in 350F (180C) oven for 45-50 minutes or until the cake springs back when touched in the centre.
7.  Cool for 5 minutes then remove the outer ring from pan.  Cool completely.
8.  In small bowl, mix together icing sugar, lemon juice and margarine until smooth.  Drizzle from spoon over cake in this stream.

Now it is finally time to cut yourself a big piece and enjoy with a cup of tea or latte.
<3