Cinnamon Swirl Banana Bread

I got this recipe from here.  Normally when I make it, I only use half the 'swirl' mixture, today I doubled the recipe and put it in a bundt pan so I used it all!

For the bread:
• 3 over-ripe bananas, smashed up
• 1/3 cup melted butter
• 3/4 cup sugar
• 1 egg, beaten
• 1 tsp vanilla
• 1 tsp baking soda
• dash of salt
• 1 1/2 cups flour

For the swirl:
• 1/3 cup sugar
• 1 Tbs cinnamon

1. Preheat oven to 350. Butter and four a loaf pan. Mine was 9 x 5, but you could use any sort, I suppose. Just keep a close eye on it in the oven, and adjust the time as needed
2. Mix bananas, butter, sugar, egg, and vanilla together. sprinkle baking soda and salt around on top of the banana mixture. Then gently stir in flour. Be careful not to over-mix!
3. In a small dish, mix together the 1/3 cup sugar and 1 Tbs cinnamon.
4. Add 1/2 of the batter to the loaf pan and then sprinkle half, or a little more than half of the cinnamon-sugar mixture all over the batter in the pan. Add the rest of the batter, and then sprinkle the leftover cinnamon-sugar on top.
5. Bake for 50-60 minutes, but remember, if you’re using a different-sized loaf pan, be careful and keep a close eyeball on it!