Creating these delicious roll-ups is a straightforward process. For the best results, prepare your ingredients and workspace before you begin. This is often referred to as “mise en place” and it makes the cooking experience smooth and enjoyable. We will focus on the classic pan-frying method here, as it yields a wonderfully crisp exterior.

Step 1: Prepare the Cinnamon-Sugar Mixture
In a small bowl, combine the 1/4 cup of granulated sugar and the 1 tablespoon of ground cinnamon. Whisk them together thoroughly with a fork or a small whisk until the cinnamon is evenly distributed throughout the sugar. There should be no clumps, and the mixture should be a uniform, pale brown color. Set this aside.

Step 2: Prepare the Tortillas
Lay the four flour tortillas flat on a clean work surface, like a large cutting board or your countertop. If your tortillas feel a bit stiff, you can warm them slightly to make them more pliable and prevent cracking when you roll them. To do this, wrap the stack of tortillas in a damp paper towel and microwave them for 20-30 seconds.

Step 3: Butter and Season the Tortillas
Using a pastry brush or the back of a spoon, spread about half a tablespoon of the melted butter over the entire surface of one side of each tortilla, making sure to go all the way to the edges. Now, take your cinnamon-sugar mixture and sprinkle approximately one tablespoon of it evenly over the buttered surface of each tortilla. The butter will help the mixture adhere.

Step 4: Add the Banana and Roll
Peel your bananas. Place one whole peeled banana near the edge of each seasoned tortilla. Begin to roll the tortilla up tightly around the banana. The goal is to create a snug cylinder with the banana encased in the center. The seam should be facing down when you place it on your work surface to help it stay sealed. Repeat this process for all four tortillas.

Step 5: Cook the Roll-Ups
Place a large non-stick skillet or griddle over medium heat. Add the remaining 2 tablespoons of melted butter to the pan and swirl it around to coat the bottom. Once the butter is melted and begins to sizzle lightly, carefully place the banana roll-ups in the pan, seam-side down. This will help to seal the edge as it cooks.

Step 6: Pan-Fry to Golden Perfection
Cook the roll-ups for about 2-3 minutes per side. You are looking for a deep golden-brown color and a crispy, slightly bubbly texture on the exterior. Use tongs to carefully turn the roll-ups, ensuring you brown them on at least two or three sides for an even crunch. The sugar on the outside will caramelize, creating an irresistible crust. Be mindful of the heat; if they are browning too quickly, reduce the heat to medium-low to prevent burning while allowing the inside to get warm and gooey.

Step 7: Final Touches and Serving
Once the roll-ups are beautifully browned and crisp on all sides, remove them from the skillet and place them on a cutting board. Let them cool for a minute or two, as the filling will be very hot. You can serve them whole, or for a more elegant presentation, slice them crosswise into 1-inch thick pinwheels. Dust with any remaining cinnamon-sugar mixture or a little powdered sugar before serving warm.