1️⃣ Preheat and Prepare the Pan:
Preheat your oven to 375°F (190°C). Grease and flour a 10×15-inch jelly roll pan and line it with parchment paper.

2️⃣ Prepare the Dry Ingredients:
In a medium bowl, whisk together the flour, baking powder, and salt. Set aside.

3️⃣ Beat the Eggs and Sugar:
In a large mixing bowl, beat the eggs and granulated sugar with an electric mixer on high speed until light and fluffy, about 5 minutes. Add in the vanilla extract and mix to combine.

4️⃣ Combine Dry and Wet Ingredients:
Gradually add the dry ingredients to the egg mixture, folding gently until just combined.

5️⃣ Add Food Coloring:
Divide the batter evenly into three separate bowls. Add a few drops of food coloring to each bowl, stirring until the desired colors are achieved.

6️⃣ Fill the Pan with Colored Batter:
Pour each colored batter into its own section of the prepared jelly roll pan, spreading it out evenly with a spatula.

7️⃣ Bake the Cake:
Bake in the preheated oven for 8-10 minutes, or until the cake springs back when lightly touched.

8️⃣ Roll the Cake:
While the cake is still warm, carefully loosen the edges with a knife and invert it onto a clean kitchen towel dusted with powdered sugar. Starting from one short end, carefully roll up the cake and towel together. Place it seam side down on a wire rack to cool completely.

9️⃣ Fill and Re-roll:
Once the cake is cooled, carefully unroll it and remove the towel. Spread a layer of frosting or whipped cream over the cake, leaving a border around the edges. Gently re-roll the cake, starting from the same short end, without the towel. Place it seam side down on a serving platter.

🔟 Decorate and Chill:
Decorate the top of the cake roll with additional frosting or whipped cream and sprinkles, if desired. Chill the cake roll in the refrigerator for at least 1 hour before slicing and serving.