creamy lemon crumb squares

These creamy lemon crumb squares are delicious!  They were even better than I expected after having looked at the list of ingredients.  I found this recipe on my friend Annie's pinterest and she has good taste so I knew I was safe in trying them.  I love citrus and I love creamy so there you have it- a terrific treat.

creamy lemon crumb squares (The Girl Who Ate Everything)
1 1/3 cup all-purpose flour
1/2 teaspoon salt
1 teaspoon baking powder
1 stick butter, slightly softened
1 cup brown sugar, lightly packed
1 cup oats
1 can (14 ounces) sweetened condensed milk
1/2 cups lemon juice
zest of 1 lemon

Preheat oven to 350 degrees.  Mix butter and brown sugar until well combined.  Sift together flour, salt and baking powder.  Add oats and flour to butter/sugar mixture and mix to combine. 
Press half of the oat crumb mixture into the bottom of a 9x11-inch pan.
Mix together condensed milk, lemon juice and lemon zest.  Spread onto the bottom layer of the crumb mixture.  Crumble the other half of the crumb mixture on top of the lemon layer but don't press.
Bake for 20 to 25 minutes or until golden brown.
Allow pan to sit on the counter for 30 minutes after baking.  Cut into squares and refrigerate for a couple of hours or until cool.  Serve cool.