Lime and Coconut Crumble Bars

My mom has been telling me to make these bars for months now.  I finally got around to it and guess what?  Mom was right -- they are unbelievable!  (I may be biased because I don't think there is anything better than the coconut and lime combo.)

Lime and Coconut Crumble Bars
Source: Baking Bites

1/2 cup butter, room temperature 
1 cup brown sugar
1 cup all purpose flour
1 tsp baking powder
1/2 tsp salt
1/2 cup rolled oats, whole or quick cooking
1/2 cup shredded coconut, sweetened or unsweetened
1 14-oz can sweetened condensed milk
1/2 cup fresh lime juice
2 tsp lime zest

Directions
Preheat oven to 350F. Line a 9×9-inch baking pan with aluminum foil and grease lightly.

In a large bowl, cream together butter and brown sugar until fluffy. Add in flour, baking powder and salt and mix until everything comes together in a crumbly mixture and flour is evenly distributed. Mix in oats and coconut. Mixture will be somewhat dry and sandy.

In a medium bowl, whisk together sweetened condensed milk, lime juice and lime zest.

Put 2 cups of the oat mixture into the bottom of prepared baking dish and press firmly into an even layer. Pour lime mixture on top and spread evenly. Crumble all remaining oat mixture over the top of the lime mixture, covering it completely.

Bake for 30-35 minutes, until golden brown.

Cool completely on a wire rack before cutting into squares.

Makes 25 squares.