1/3 c. butter, softened
1/3 c. packed brown sugar
1/2 c. flaked coconut
1 pkg. Betty Crocker blueberry muffin mix
1 (8 1/2 oz.) can crushed pineapple, drained

Preheat oven to 400 degrees. Grease square pan, 9"x9"x2". Mix butter, sugar and coconut; set aside. Prepare muffin mix as directed on package except add pineapple. Pour into pan. Spread coconut mixture over top evenly. Bake 25 to 30 minutes or until brown.