Begin by peeling 2 ripe bananas and slicing them into thick, diagonal pieces, about 1-inch thick. Aim for even cuts to ensure consistent cooking. Set the sliced bananas aside on a plate, ready to be transformed into the star ingredient of your Bananas Foster.

In a large skillet, melt 4 tablespoons of butter over medium heat, ensuring it completely coats the bottom of the pan. Once melted, add ¾ cup of dark brown sugar and 1 teaspoon of cinnamon. Stir the mixture continuously for about 2-3 minutes until it transforms into a smooth and glossy caramel sauce.

Carefully add the banana slices to the sauce in the skillet. Gently stir the bananas using a spatula to ensure they are coated in the caramel. Cook for another 2-3 minutes, allowing the bananas to soften slightly and soak up the rich flavors, making them golden and tender, without turning mushy.

Pour in ½ cup of dark rum and gently swirl the skillet to mix everything together. For a dramatic touch, you may flambé the mixture: carefully ignite the rum with a long lighter or match, letting it burn for a few seconds to enhance the flavor, then let it extinguish on its own as the alcohol cooks off.

Stir in 1 teaspoon of vanilla extract and, if desired, ¼ cup of chopped pecans for added texture. Allow the sauce to simmer for 1-2 additional minutes, stirring occasionally until thickened to a syrupy consistency. The aromas will be irresistible, signaling that your Bananas Foster is nearly ready to serve.

Immediately spoon the warm, caramelized bananas and sauce over generous scoops of vanilla ice cream. Ensure to drizzle some extra sauce on top for an indulgent finish. The contrast of warm Bananas Foster paired with cold ice cream creates a delightful experience that will impress anyone fortunate enough to indulge!