Step 1

Preheat oven to 350 degrees F and grease a jelly roll pan (15x10 inches).

Step 2

In a small bowl, sift together flour, sugar, baking powder, baking soda, salt, and cinnamon. Set aside.

Step 3

In a large bowl, combine mashed bananas, pineapple with juices, oils, eggs, and vanilla. Mix until well combined.

Step 4

Slowly mix dry ingredients into the wet until just incorporated. Fold in 1 cup of pecans.

Step 5

Spread batter in the prepared pan and bake for 38-42 minutes, or until an inserted toothpick comes out clean.

Step 6

As cake bakes, beat together all frosting ingredients until smooth.

Step 7

Allow cake to cool, then frost and sprinkle with pecan pieces.

Step 8

Chill cake until ready to serve.